1331193680

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131023}}^1$

素因数の和:131163

約数の個数: 40

約数和(自身を含む): 3119419392

約数和(自身を除く): 1788225712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 131023, 262046, 524092, 655115, 1048184, 1310230, 2096368, 2620460, 5240920, 10481840, 16639921, 33279842, 66559684, 83199605, 133119368, 166399210, 266238736, 332798420, 665596840, 1331193680]

約数ペア:

[(1, 1331193680), (2, 665596840), (4, 332798420), (5, 266238736), (8, 166399210), (10, 133119368), (16, 83199605), (20, 66559684), (40, 33279842), (80, 16639921), (127, 10481840), (254, 5240920), (508, 2620460), (635, 2096368), (1016, 1310230), (1270, 1048184), (2032, 655115), (2540, 524092), (5080, 262046), (10160, 131023)]