81470800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{11981}}^1$

素因数の和:12016

約数の個数: 60

約数和(自身を含む): 207264636

約数和(自身を除く): 125793836

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 3400, 6800, 11981, 23962, 47924, 59905, 95848, 119810, 191696, 203677, 239620, 299525, 407354, 479240, 599050, 814708, 958480, 1018385, 1198100, 1629416, 2036770, 2396200, 3258832, 4073540, 4792400, 5091925, 8147080, 10183850, 16294160, 20367700, 40735400, 81470800]

約数ペア:

[(1, 81470800), (2, 40735400), (4, 20367700), (5, 16294160), (8, 10183850), (10, 8147080), (16, 5091925), (17, 4792400), (20, 4073540), (25, 3258832), (34, 2396200), (40, 2036770), (50, 1629416), (68, 1198100), (80, 1018385), (85, 958480), (100, 814708), (136, 599050), (170, 479240), (200, 407354), (272, 299525), (340, 239620), (400, 203677), (425, 191696), (680, 119810), (850, 95848), (1360, 59905), (1700, 47924), (3400, 23962), (6800, 11981)]