28534160

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20981}}^1$

素因数の和:21011

約数の個数: 40

約数和(自身を含む): 70247736

約数和(自身を除く): 41713576

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20981, 41962, 83924, 104905, 167848, 209810, 335696, 356677, 419620, 713354, 839240, 1426708, 1678480, 1783385, 2853416, 3566770, 5706832, 7133540, 14267080, 28534160]

約数ペア:

[(1, 28534160), (2, 14267080), (4, 7133540), (5, 5706832), (8, 3566770), (10, 2853416), (16, 1783385), (17, 1678480), (20, 1426708), (34, 839240), (40, 713354), (68, 419620), (80, 356677), (85, 335696), (136, 209810), (170, 167848), (272, 104905), (340, 83924), (680, 41962), (1360, 20981)]