81179200

素因数分解:

$2^6\times 5^2\times {\mathrm{113}}^1\times {\mathrm{449}}^1$

素因数の和:584

約数の個数: 84

約数和(自身を含む): 201968100

約数和(自身を除く): 120788900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 113, 160, 200, 226, 320, 400, 449, 452, 565, 800, 898, 904, 1130, 1600, 1796, 1808, 2245, 2260, 2825, 3592, 3616, 4490, 4520, 5650, 7184, 7232, 8980, 9040, 11225, 11300, 14368, 17960, 18080, 22450, 22600, 28736, 35920, 36160, 44900, 45200, 50737, 71840, 89800, 90400, 101474, 143680, 179600, 180800, 202948, 253685, 359200, 405896, 507370, 718400, 811792, 1014740, 1268425, 1623584, 2029480, 2536850, 3247168, 4058960, 5073700, 8117920, 10147400, 16235840, 20294800, 40589600, 81179200]

約数ペア:

[(1, 81179200), (2, 40589600), (4, 20294800), (5, 16235840), (8, 10147400), (10, 8117920), (16, 5073700), (20, 4058960), (25, 3247168), (32, 2536850), (40, 2029480), (50, 1623584), (64, 1268425), (80, 1014740), (100, 811792), (113, 718400), (160, 507370), (200, 405896), (226, 359200), (320, 253685), (400, 202948), (449, 180800), (452, 179600), (565, 143680), (800, 101474), (898, 90400), (904, 89800), (1130, 71840), (1600, 50737), (1796, 45200), (1808, 44900), (2245, 36160), (2260, 35920), (2825, 28736), (3592, 22600), (3616, 22450), (4490, 18080), (4520, 17960), (5650, 14368), (7184, 11300), (7232, 11225), (8980, 9040)]