18740080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12329}}^1$

素因数の和:12361

約数の個数: 40

約数和(自身を含む): 45867600

約数和(自身を除く): 27127520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12329, 24658, 49316, 61645, 98632, 123290, 197264, 234251, 246580, 468502, 493160, 937004, 986320, 1171255, 1874008, 2342510, 3748016, 4685020, 9370040, 18740080]

約数ペア:

[(1, 18740080), (2, 9370040), (4, 4685020), (5, 3748016), (8, 2342510), (10, 1874008), (16, 1171255), (19, 986320), (20, 937004), (38, 493160), (40, 468502), (76, 246580), (80, 234251), (95, 197264), (152, 123290), (190, 98632), (304, 61645), (380, 49316), (760, 24658), (1520, 12329)]