28805530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{221581}}^1$

素因数の和:221601

約数の個数: 16

約数和(自身を含む): 55838664

約数和(自身を除く): 27033134

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 221581, 443162, 1107905, 2215810, 2880553, 5761106, 14402765, 28805530]

約数ペア:

[(1, 28805530), (2, 14402765), (5, 5761106), (10, 2880553), (13, 2215810), (26, 1107905), (65, 443162), (130, 221581)]