18421640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{24239}}^1$

素因数の和:24269

約数の個数: 32

約数和(自身を含む): 43632000

約数和(自身を除く): 25210360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 24239, 48478, 96956, 121195, 193912, 242390, 460541, 484780, 921082, 969560, 1842164, 2302705, 3684328, 4605410, 9210820, 18421640]

約数ペア:

[(1, 18421640), (2, 9210820), (4, 4605410), (5, 3684328), (8, 2302705), (10, 1842164), (19, 969560), (20, 921082), (38, 484780), (40, 460541), (76, 242390), (95, 193912), (152, 121195), (190, 96956), (380, 48478), (760, 24239)]