28080325

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12343}}^1$

素因数の和:12373

約数の個数: 24

約数和(自身を含む): 42858368

約数和(自身を除く): 14778043

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 12343, 61715, 86401, 160459, 308575, 432005, 802295, 1123213, 2160025, 4011475, 5616065, 28080325]

約数ペア:

[(1, 28080325), (5, 5616065), (7, 4011475), (13, 2160025), (25, 1123213), (35, 802295), (65, 432005), (91, 308575), (175, 160459), (325, 86401), (455, 61715), (2275, 12343)]