28755710

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:580

約数の個数: 32

約数和(自身を含む): 53141184

約数和(自身を除く): 24385474

約数列:

[1, 2, 5, 10, 71, 101, 142, 202, 355, 401, 505, 710, 802, 1010, 2005, 4010, 7171, 14342, 28471, 35855, 40501, 56942, 71710, 81002, 142355, 202505, 284710, 405010, 2875571, 5751142, 14377855, 28755710]

約数ペア:

[(1, 28755710), (2, 14377855), (5, 5751142), (10, 2875571), (71, 405010), (101, 284710), (142, 202505), (202, 142355), (355, 81002), (401, 71710), (505, 56942), (710, 40501), (802, 35855), (1010, 28471), (2005, 14342), (4010, 7171)]