81353500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^2\times {\mathrm{563}}^1$

素因数の和:616

約数の個数: 72

約数和(自身を含む): 189077616

約数和(自身を除く): 107724116

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 289, 340, 425, 500, 563, 578, 850, 1126, 1156, 1445, 1700, 2125, 2252, 2815, 2890, 4250, 5630, 5780, 7225, 8500, 9571, 11260, 14075, 14450, 19142, 28150, 28900, 36125, 38284, 47855, 56300, 70375, 72250, 95710, 140750, 144500, 162707, 191420, 239275, 281500, 325414, 478550, 650828, 813535, 957100, 1196375, 1627070, 2392750, 3254140, 4067675, 4785500, 8135350, 16270700, 20338375, 40676750, 81353500]

約数ペア:

[(1, 81353500), (2, 40676750), (4, 20338375), (5, 16270700), (10, 8135350), (17, 4785500), (20, 4067675), (25, 3254140), (34, 2392750), (50, 1627070), (68, 1196375), (85, 957100), (100, 813535), (125, 650828), (170, 478550), (250, 325414), (289, 281500), (340, 239275), (425, 191420), (500, 162707), (563, 144500), (578, 140750), (850, 95710), (1126, 72250), (1156, 70375), (1445, 56300), (1700, 47855), (2125, 38284), (2252, 36125), (2815, 28900), (2890, 28150), (4250, 19142), (5630, 14450), (5780, 14075), (7225, 11260), (8500, 9571)]