72844840

素因数分解:

$2^3\times 5^1\times {\mathrm{1821121}}^1$

素因数の和:1821132

約数の個数: 16

約数和(自身を含む): 163900980

約数和(自身を除く): 91056140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1821121, 3642242, 7284484, 9105605, 14568968, 18211210, 36422420, 72844840]

約数ペア:

[(1, 72844840), (2, 36422420), (4, 18211210), (5, 14568968), (8, 9105605), (10, 7284484), (20, 3642242), (40, 1821121)]