251423480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:262

約数の個数: 192

約数和(自身を含む): 731989440

約数和(自身を除く): 480565960

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 41, 44, 55, 56, 70, 77, 82, 88, 110, 121, 140, 154, 164, 181, 205, 220, 242, 280, 287, 308, 328, 362, 385, 410, 440, 451, 484, 574, 605, 616, 724, 770, 820, 847, 902, 905, 968, 1148, 1210, 1267, 1435, 1448, 1540, 1640, 1694, 1804, 1810, 1991, 2255, 2296, 2420, 2534, 2870, 3080, 3157, 3388, 3608, 3620, 3982, 4235, 4510, 4840, 4961, 5068, 5740, 6314, 6335, 6776, 7240, 7421, 7964, 8470, 9020, 9922, 9955, 10136, 11480, 12628, 12670, 13937, 14842, 15785, 15928, 16940, 18040, 19844, 19910, 21901, 24805, 25256, 25340, 27874, 29684, 31570, 33880, 34727, 37105, 39688, 39820, 43802, 49610, 50680, 51947, 55748, 59368, 63140, 69454, 69685, 74210, 79640, 81631, 87604, 99220, 103894, 109505, 111496, 126280, 138908, 139370, 148420, 153307, 163262, 173635, 175208, 198440, 207788, 219010, 259735, 277816, 278740, 296840, 306614, 326524, 347270, 408155, 415576, 438020, 519470, 557480, 571417, 613228, 653048, 694540, 766535, 816310, 876040, 897941, 1038940, 1142834, 1226456, 1389080, 1533070, 1632620, 1795882, 2077880, 2285668, 2857085, 3066140, 3265240, 3591764, 4489705, 4571336, 5714170, 6132280, 6285587, 7183528, 8979410, 11428340, 12571174, 17958820, 22856680, 25142348, 31427935, 35917640, 50284696, 62855870, 125711740, 251423480]

約数ペア:

[(1, 251423480), (2, 125711740), (4, 62855870), (5, 50284696), (7, 35917640), (8, 31427935), (10, 25142348), (11, 22856680), (14, 17958820), (20, 12571174), (22, 11428340), (28, 8979410), (35, 7183528), (40, 6285587), (41, 6132280), (44, 5714170), (55, 4571336), (56, 4489705), (70, 3591764), (77, 3265240), (82, 3066140), (88, 2857085), (110, 2285668), (121, 2077880), (140, 1795882), (154, 1632620), (164, 1533070), (181, 1389080), (205, 1226456), (220, 1142834), (242, 1038940), (280, 897941), (287, 876040), (308, 816310), (328, 766535), (362, 694540), (385, 653048), (410, 613228), (440, 571417), (451, 557480), (484, 519470), (574, 438020), (605, 415576), (616, 408155), (724, 347270), (770, 326524), (820, 306614), (847, 296840), (902, 278740), (905, 277816), (968, 259735), (1148, 219010), (1210, 207788), (1267, 198440), (1435, 175208), (1448, 173635), (1540, 163262), (1640, 153307), (1694, 148420), (1804, 139370), (1810, 138908), (1991, 126280), (2255, 111496), (2296, 109505), (2420, 103894), (2534, 99220), (2870, 87604), (3080, 81631), (3157, 79640), (3388, 74210), (3608, 69685), (3620, 69454), (3982, 63140), (4235, 59368), (4510, 55748), (4840, 51947), (4961, 50680), (5068, 49610), (5740, 43802), (6314, 39820), (6335, 39688), (6776, 37105), (7240, 34727), (7421, 33880), (7964, 31570), (8470, 29684), (9020, 27874), (9922, 25340), (9955, 25256), (10136, 24805), (11480, 21901), (12628, 19910), (12670, 19844), (13937, 18040), (14842, 16940), (15785, 15928)]