72872840

素因数分解:

$2^3\times 5^1\times {\mathrm{1821821}}^1$

素因数の和:1821832

約数の個数: 16

約数和(自身を含む): 163963980

約数和(自身を除く): 91091140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1821821, 3643642, 7287284, 9109105, 14574568, 18218210, 36436420, 72872840]

約数ペア:

[(1, 72872840), (2, 36436420), (4, 18218210), (5, 14574568), (8, 9109105), (10, 7287284), (20, 3643642), (40, 1821821)]