72645320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{165103}}^1$

素因数の和:165125

約数の個数: 32

約数和(自身を含む): 178312320

約数和(自身を除く): 105667000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 165103, 330206, 660412, 825515, 1320824, 1651030, 1816133, 3302060, 3632266, 6604120, 7264532, 9080665, 14529064, 18161330, 36322660, 72645320]

約数ペア:

[(1, 72645320), (2, 36322660), (4, 18161330), (5, 14529064), (8, 9080665), (10, 7264532), (11, 6604120), (20, 3632266), (22, 3302060), (40, 1816133), (44, 1651030), (55, 1320824), (88, 825515), (110, 660412), (220, 330206), (440, 165103)]