72007960

素因数分解:

$2^3\times 5^1\times {\mathrm{1800199}}^1$

素因数の和:1800210

約数の個数: 16

約数和(自身を含む): 162018000

約数和(自身を除く): 90010040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1800199, 3600398, 7200796, 9000995, 14401592, 18001990, 36003980, 72007960]

約数ペア:

[(1, 72007960), (2, 36003980), (4, 18001990), (5, 14401592), (8, 9000995), (10, 7200796), (20, 3600398), (40, 1800199)]