221566540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{852179}}^1$

素因数の和:852201

約数の個数: 24

約数和(自身を含む): 501081840

約数和(自身を除く): 279515300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 852179, 1704358, 3408716, 4260895, 8521790, 11078327, 17043580, 22156654, 44313308, 55391635, 110783270, 221566540]

約数ペア:

[(1, 221566540), (2, 110783270), (4, 55391635), (5, 44313308), (10, 22156654), (13, 17043580), (20, 11078327), (26, 8521790), (52, 4260895), (65, 3408716), (130, 1704358), (260, 852179)]