8901478520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{1801}}^1$

素因数の和:2109

約数の個数: 128

約数和(自身を含む): 22419763200

約数和(自身を除く): 13518284680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 239, 376, 440, 470, 478, 517, 940, 956, 1034, 1195, 1801, 1880, 1912, 2068, 2390, 2585, 2629, 3602, 4136, 4780, 5170, 5258, 7204, 9005, 9560, 10340, 10516, 11233, 13145, 14408, 18010, 19811, 20680, 21032, 22466, 26290, 36020, 39622, 44932, 52580, 56165, 72040, 79244, 84647, 89864, 99055, 105160, 112330, 123563, 158488, 169294, 198110, 224660, 247126, 338588, 396220, 423235, 430439, 449320, 494252, 617815, 677176, 792440, 846470, 860878, 931117, 988504, 1235630, 1692940, 1721756, 1862234, 2152195, 2471260, 3385880, 3443512, 3724468, 4304390, 4655585, 4734829, 4942520, 7448936, 8608780, 9311170, 9469658, 17217560, 18622340, 18939316, 20230633, 23674145, 37244680, 37878632, 40461266, 47348290, 80922532, 94696580, 101153165, 161845064, 189393160, 202306330, 222536963, 404612660, 445073926, 809225320, 890147852, 1112684815, 1780295704, 2225369630, 4450739260, 8901478520]

約数ペア:

[(1, 8901478520), (2, 4450739260), (4, 2225369630), (5, 1780295704), (8, 1112684815), (10, 890147852), (11, 809225320), (20, 445073926), (22, 404612660), (40, 222536963), (44, 202306330), (47, 189393160), (55, 161845064), (88, 101153165), (94, 94696580), (110, 80922532), (188, 47348290), (220, 40461266), (235, 37878632), (239, 37244680), (376, 23674145), (440, 20230633), (470, 18939316), (478, 18622340), (517, 17217560), (940, 9469658), (956, 9311170), (1034, 8608780), (1195, 7448936), (1801, 4942520), (1880, 4734829), (1912, 4655585), (2068, 4304390), (2390, 3724468), (2585, 3443512), (2629, 3385880), (3602, 2471260), (4136, 2152195), (4780, 1862234), (5170, 1721756), (5258, 1692940), (7204, 1235630), (9005, 988504), (9560, 931117), (10340, 860878), (10516, 846470), (11233, 792440), (13145, 677176), (14408, 617815), (18010, 494252), (19811, 449320), (20680, 430439), (21032, 423235), (22466, 396220), (26290, 338588), (36020, 247126), (39622, 224660), (44932, 198110), (52580, 169294), (56165, 158488), (72040, 123563), (79244, 112330), (84647, 105160), (89864, 99055)]