20968870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7013}}^1$

素因数の和:7056

約数の個数: 32

約数和(自身を含む): 42420672

約数和(自身を除く): 21451802

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 7013, 14026, 35065, 70130, 91169, 161299, 182338, 322598, 455845, 806495, 911690, 1612990, 2096887, 4193774, 10484435, 20968870]

約数ペア:

[(1, 20968870), (2, 10484435), (5, 4193774), (10, 2096887), (13, 1612990), (23, 911690), (26, 806495), (46, 455845), (65, 322598), (115, 182338), (130, 161299), (230, 91169), (299, 70130), (598, 35065), (1495, 14026), (2990, 7013)]