18615220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71597}}^1$

素因数の和:71619

約数の個数: 24

約数和(自身を含む): 42099624

約数和(自身を除く): 23484404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71597, 143194, 286388, 357985, 715970, 930761, 1431940, 1861522, 3723044, 4653805, 9307610, 18615220]

約数ペア:

[(1, 18615220), (2, 9307610), (4, 4653805), (5, 3723044), (10, 1861522), (13, 1431940), (20, 930761), (26, 715970), (52, 357985), (65, 286388), (130, 143194), (260, 71597)]