90570389

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 117680640

約数和(自身を除く): 27110251

約数列:

[1, 7, 13, 23, 91, 109, 161, 299, 397, 763, 1417, 2093, 2507, 2779, 5161, 9131, 9919, 17549, 32591, 36127, 43273, 63917, 118703, 228137, 302911, 562549, 830921, 995279, 3937843, 6966953, 12938627, 90570389]

約数ペア:

[(1, 90570389), (7, 12938627), (13, 6966953), (23, 3937843), (91, 995279), (109, 830921), (161, 562549), (299, 302911), (397, 228137), (763, 118703), (1417, 63917), (2093, 43273), (2507, 36127), (2779, 32591), (5161, 17549), (9131, 9919)]