72017240

素因数分解:

$2^3\times 5^1\times {\mathrm{1800431}}^1$

素因数の和:1800442

約数の個数: 16

約数和(自身を含む): 162038880

約数和(自身を除く): 90021640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1800431, 3600862, 7201724, 9002155, 14403448, 18004310, 36008620, 72017240]

約数ペア:

[(1, 72017240), (2, 36008620), (4, 18004310), (5, 14403448), (8, 9002155), (10, 7201724), (20, 3600862), (40, 1800431)]