398137740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{947}}^1$

素因数の和:997

約数の個数: 288

約数和(自身を含む): 1525112064

約数和(自身を除く): 1126974324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 20, 21, 22, 26, 28, 30, 33, 35, 39, 42, 44, 49, 52, 55, 60, 65, 66, 70, 77, 78, 84, 91, 98, 105, 110, 130, 132, 140, 143, 147, 154, 156, 165, 182, 195, 196, 210, 220, 231, 245, 260, 273, 286, 294, 308, 330, 364, 385, 390, 420, 429, 455, 462, 490, 539, 546, 572, 588, 637, 660, 715, 735, 770, 780, 858, 910, 924, 947, 980, 1001, 1078, 1092, 1155, 1274, 1365, 1430, 1470, 1540, 1617, 1716, 1820, 1894, 1911, 2002, 2145, 2156, 2310, 2548, 2695, 2730, 2841, 2860, 2940, 3003, 3185, 3234, 3788, 3822, 4004, 4290, 4620, 4735, 5005, 5390, 5460, 5682, 6006, 6370, 6468, 6629, 7007, 7644, 8085, 8580, 9470, 9555, 10010, 10417, 10780, 11364, 12012, 12311, 12740, 13258, 14014, 14205, 15015, 16170, 18940, 19110, 19887, 20020, 20834, 21021, 24622, 26516, 28028, 28410, 30030, 31251, 32340, 33145, 35035, 36933, 38220, 39774, 41668, 42042, 46403, 49244, 52085, 56820, 60060, 61555, 62502, 66290, 70070, 72919, 73866, 79548, 84084, 86177, 92806, 99435, 104170, 105105, 123110, 125004, 132580, 135421, 139209, 140140, 145838, 147732, 156255, 172354, 184665, 185612, 198870, 208340, 210210, 218757, 232015, 246220, 258531, 270842, 278418, 291676, 312510, 344708, 364595, 369330, 397740, 406263, 420420, 430885, 437514, 464030, 510433, 517062, 541684, 556836, 603239, 625020, 677105, 696045, 729190, 738660, 812526, 861770, 875028, 928060, 947947, 1020866, 1034124, 1093785, 1206478, 1292655, 1354210, 1392090, 1458380, 1531299, 1625052, 1723540, 1809717, 1895894, 2031315, 2041732, 2187570, 2412956, 2552165, 2585310, 2708420, 2784180, 2843841, 3016195, 3062598, 3619434, 3791788, 4062630, 4375140, 4739735, 5104330, 5170620, 5687682, 6032390, 6125196, 6635629, 7238868, 7656495, 8125260, 9048585, 9479470, 10208660, 11375364, 12064780, 13271258, 14219205, 15312990, 18097170, 18958940, 19906887, 26542516, 28438410, 30625980, 33178145, 36194340, 39813774, 56876820, 66356290, 79627548, 99534435, 132712580, 199068870, 398137740]

約数ペア:

[(1, 398137740), (2, 199068870), (3, 132712580), (4, 99534435), (5, 79627548), (6, 66356290), (7, 56876820), (10, 39813774), (11, 36194340), (12, 33178145), (13, 30625980), (14, 28438410), (15, 26542516), (20, 19906887), (21, 18958940), (22, 18097170), (26, 15312990), (28, 14219205), (30, 13271258), (33, 12064780), (35, 11375364), (39, 10208660), (42, 9479470), (44, 9048585), (49, 8125260), (52, 7656495), (55, 7238868), (60, 6635629), (65, 6125196), (66, 6032390), (70, 5687682), (77, 5170620), (78, 5104330), (84, 4739735), (91, 4375140), (98, 4062630), (105, 3791788), (110, 3619434), (130, 3062598), (132, 3016195), (140, 2843841), (143, 2784180), (147, 2708420), (154, 2585310), (156, 2552165), (165, 2412956), (182, 2187570), (195, 2041732), (196, 2031315), (210, 1895894), (220, 1809717), (231, 1723540), (245, 1625052), (260, 1531299), (273, 1458380), (286, 1392090), (294, 1354210), (308, 1292655), (330, 1206478), (364, 1093785), (385, 1034124), (390, 1020866), (420, 947947), (429, 928060), (455, 875028), (462, 861770), (490, 812526), (539, 738660), (546, 729190), (572, 696045), (588, 677105), (637, 625020), (660, 603239), (715, 556836), (735, 541684), (770, 517062), (780, 510433), (858, 464030), (910, 437514), (924, 430885), (947, 420420), (980, 406263), (1001, 397740), (1078, 369330), (1092, 364595), (1155, 344708), (1274, 312510), (1365, 291676), (1430, 278418), (1470, 270842), (1540, 258531), (1617, 246220), (1716, 232015), (1820, 218757), (1894, 210210), (1911, 208340), (2002, 198870), (2145, 185612), (2156, 184665), (2310, 172354), (2548, 156255), (2695, 147732), (2730, 145838), (2841, 140140), (2860, 139209), (2940, 135421), (3003, 132580), (3185, 125004), (3234, 123110), (3788, 105105), (3822, 104170), (4004, 99435), (4290, 92806), (4620, 86177), (4735, 84084), (5005, 79548), (5390, 73866), (5460, 72919), (5682, 70070), (6006, 66290), (6370, 62502), (6468, 61555), (6629, 60060), (7007, 56820), (7644, 52085), (8085, 49244), (8580, 46403), (9470, 42042), (9555, 41668), (10010, 39774), (10417, 38220), (10780, 36933), (11364, 35035), (12012, 33145), (12311, 32340), (12740, 31251), (13258, 30030), (14014, 28410), (14205, 28028), (15015, 26516), (16170, 24622), (18940, 21021), (19110, 20834), (19887, 20020)]