40651760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:522

約数の個数: 80

約数和(自身を含む): 101725632

約数和(自身を除く): 61073872

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 71, 80, 85, 136, 142, 170, 272, 284, 340, 355, 421, 568, 680, 710, 842, 1136, 1207, 1360, 1420, 1684, 2105, 2414, 2840, 3368, 4210, 4828, 5680, 6035, 6736, 7157, 8420, 9656, 12070, 14314, 16840, 19312, 24140, 28628, 29891, 33680, 35785, 48280, 57256, 59782, 71570, 96560, 114512, 119564, 143140, 149455, 239128, 286280, 298910, 478256, 508147, 572560, 597820, 1016294, 1195640, 2032588, 2391280, 2540735, 4065176, 5081470, 8130352, 10162940, 20325880, 40651760]

約数ペア:

[(1, 40651760), (2, 20325880), (4, 10162940), (5, 8130352), (8, 5081470), (10, 4065176), (16, 2540735), (17, 2391280), (20, 2032588), (34, 1195640), (40, 1016294), (68, 597820), (71, 572560), (80, 508147), (85, 478256), (136, 298910), (142, 286280), (170, 239128), (272, 149455), (284, 143140), (340, 119564), (355, 114512), (421, 96560), (568, 71570), (680, 59782), (710, 57256), (842, 48280), (1136, 35785), (1207, 33680), (1360, 29891), (1420, 28628), (1684, 24140), (2105, 19312), (2414, 16840), (2840, 14314), (3368, 12070), (4210, 9656), (4828, 8420), (5680, 7157), (6035, 6736)]