28999240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10211}}^1$

素因数の和:10293

約数の個数: 32

約数和(自身を含む): 66173760

約数和(自身を除く): 37174520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10211, 20422, 40844, 51055, 81688, 102110, 204220, 408440, 724981, 1449962, 2899924, 3624905, 5799848, 7249810, 14499620, 28999240]

約数ペア:

[(1, 28999240), (2, 14499620), (4, 7249810), (5, 5799848), (8, 3624905), (10, 2899924), (20, 1449962), (40, 724981), (71, 408440), (142, 204220), (284, 102110), (355, 81688), (568, 51055), (710, 40844), (1420, 20422), (2840, 10211)]