18888870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:95

約数の個数: 256

約数和(自身を含む): 66189312

約数和(自身を除く): 47300442

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 17, 21, 22, 26, 30, 33, 34, 35, 37, 39, 42, 51, 55, 65, 66, 70, 74, 77, 78, 85, 91, 102, 105, 110, 111, 119, 130, 143, 154, 165, 170, 182, 185, 187, 195, 210, 221, 222, 231, 238, 255, 259, 273, 286, 330, 357, 370, 374, 385, 390, 407, 429, 442, 455, 462, 481, 510, 518, 546, 555, 561, 595, 629, 663, 714, 715, 770, 777, 814, 858, 910, 935, 962, 1001, 1105, 1110, 1122, 1155, 1190, 1221, 1258, 1295, 1309, 1326, 1365, 1430, 1443, 1547, 1554, 1785, 1870, 1887, 2002, 2035, 2145, 2210, 2310, 2405, 2431, 2442, 2590, 2618, 2730, 2805, 2849, 2886, 3003, 3094, 3145, 3315, 3367, 3570, 3774, 3885, 3927, 4070, 4290, 4403, 4641, 4810, 4862, 5005, 5291, 5610, 5698, 6006, 6105, 6290, 6545, 6630, 6734, 6919, 7215, 7293, 7735, 7770, 7854, 8177, 8547, 8806, 9282, 9435, 10010, 10101, 10582, 12155, 12210, 13090, 13209, 13838, 14245, 14430, 14586, 15015, 15470, 15873, 16354, 16835, 17017, 17094, 18870, 19635, 20202, 20757, 22015, 23205, 24310, 24531, 26418, 26455, 28490, 30030, 31746, 33670, 34034, 34595, 36465, 37037, 39270, 40885, 41514, 42735, 44030, 46410, 48433, 49062, 50505, 51051, 52910, 57239, 66045, 69190, 72930, 74074, 79365, 81770, 85085, 85470, 89947, 96866, 101010, 102102, 103785, 111111, 114478, 122655, 132090, 145299, 158730, 170170, 171717, 179894, 185185, 207570, 222222, 242165, 245310, 255255, 269841, 286195, 290598, 343434, 370370, 449735, 484330, 510510, 539682, 555555, 572390, 629629, 726495, 858585, 899470, 1111110, 1259258, 1349205, 1452990, 1717170, 1888887, 2698410, 3148145, 3777774, 6296290, 9444435, 18888870]

約数ペア:

[(1, 18888870), (2, 9444435), (3, 6296290), (5, 3777774), (6, 3148145), (7, 2698410), (10, 1888887), (11, 1717170), (13, 1452990), (14, 1349205), (15, 1259258), (17, 1111110), (21, 899470), (22, 858585), (26, 726495), (30, 629629), (33, 572390), (34, 555555), (35, 539682), (37, 510510), (39, 484330), (42, 449735), (51, 370370), (55, 343434), (65, 290598), (66, 286195), (70, 269841), (74, 255255), (77, 245310), (78, 242165), (85, 222222), (91, 207570), (102, 185185), (105, 179894), (110, 171717), (111, 170170), (119, 158730), (130, 145299), (143, 132090), (154, 122655), (165, 114478), (170, 111111), (182, 103785), (185, 102102), (187, 101010), (195, 96866), (210, 89947), (221, 85470), (222, 85085), (231, 81770), (238, 79365), (255, 74074), (259, 72930), (273, 69190), (286, 66045), (330, 57239), (357, 52910), (370, 51051), (374, 50505), (385, 49062), (390, 48433), (407, 46410), (429, 44030), (442, 42735), (455, 41514), (462, 40885), (481, 39270), (510, 37037), (518, 36465), (546, 34595), (555, 34034), (561, 33670), (595, 31746), (629, 30030), (663, 28490), (714, 26455), (715, 26418), (770, 24531), (777, 24310), (814, 23205), (858, 22015), (910, 20757), (935, 20202), (962, 19635), (1001, 18870), (1105, 17094), (1110, 17017), (1122, 16835), (1155, 16354), (1190, 15873), (1221, 15470), (1258, 15015), (1295, 14586), (1309, 14430), (1326, 14245), (1365, 13838), (1430, 13209), (1443, 13090), (1547, 12210), (1554, 12155), (1785, 10582), (1870, 10101), (1887, 10010), (2002, 9435), (2035, 9282), (2145, 8806), (2210, 8547), (2310, 8177), (2405, 7854), (2431, 7770), (2442, 7735), (2590, 7293), (2618, 7215), (2730, 6919), (2805, 6734), (2849, 6630), (2886, 6545), (3003, 6290), (3094, 6105), (3145, 6006), (3315, 5698), (3367, 5610), (3570, 5291), (3774, 5005), (3885, 4862), (3927, 4810), (4070, 4641), (4290, 4403)]