28290115

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 40974336

約数和(自身を除く): 12684221

約数列:

[1, 5, 7, 23, 35, 113, 115, 161, 311, 565, 791, 805, 1555, 2177, 2599, 3955, 7153, 10885, 12995, 18193, 35143, 35765, 50071, 90965, 175715, 246001, 250355, 808289, 1230005, 4041445, 5658023, 28290115]

約数ペア:

[(1, 28290115), (5, 5658023), (7, 4041445), (23, 1230005), (35, 808289), (113, 250355), (115, 246001), (161, 175715), (311, 90965), (565, 50071), (791, 35765), (805, 35143), (1555, 18193), (2177, 12995), (2599, 10885), (3955, 7153)]