9780156280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1009}}^1\times {\mathrm{3413}}^1$

素因数の和:4504

約数の個数: 64

約数和(自身を含む): 22343947200

約数和(自身を除く): 12563790920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1009, 1420, 2018, 2840, 3413, 4036, 5045, 6826, 8072, 10090, 13652, 17065, 20180, 27304, 34130, 40360, 68260, 71639, 136520, 143278, 242323, 286556, 358195, 484646, 573112, 716390, 969292, 1211615, 1432780, 1938584, 2423230, 2865560, 3443717, 4846460, 6887434, 9692920, 13774868, 17218585, 27549736, 34437170, 68874340, 137748680, 244503907, 489007814, 978015628, 1222519535, 1956031256, 2445039070, 4890078140, 9780156280]

約数ペア:

[(1, 9780156280), (2, 4890078140), (4, 2445039070), (5, 1956031256), (8, 1222519535), (10, 978015628), (20, 489007814), (40, 244503907), (71, 137748680), (142, 68874340), (284, 34437170), (355, 27549736), (568, 17218585), (710, 13774868), (1009, 9692920), (1420, 6887434), (2018, 4846460), (2840, 3443717), (3413, 2865560), (4036, 2423230), (5045, 1938584), (6826, 1432780), (8072, 1211615), (10090, 969292), (13652, 716390), (17065, 573112), (20180, 484646), (27304, 358195), (34130, 286556), (40360, 242323), (68260, 143278), (71639, 136520)]