72408040

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{12149}}^1$

素因数の和:12309

約数の個数: 32

約数和(自身を含む): 164025000

約数和(自身を除く): 91616960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 12149, 24298, 48596, 60745, 97192, 121490, 242980, 485960, 1810201, 3620402, 7240804, 9051005, 14481608, 18102010, 36204020, 72408040]

約数ペア:

[(1, 72408040), (2, 36204020), (4, 18102010), (5, 14481608), (8, 9051005), (10, 7240804), (20, 3620402), (40, 1810201), (149, 485960), (298, 242980), (596, 121490), (745, 97192), (1192, 60745), (1490, 48596), (2980, 24298), (5960, 12149)]