18421120

素因数分解:

$2^7\times 5^1\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:395

約数の個数: 64

約数和(自身を含む): 44614800

約数和(自身を除く): 26193680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 107, 128, 160, 214, 269, 320, 428, 535, 538, 640, 856, 1070, 1076, 1345, 1712, 2140, 2152, 2690, 3424, 4280, 4304, 5380, 6848, 8560, 8608, 10760, 13696, 17120, 17216, 21520, 28783, 34240, 34432, 43040, 57566, 68480, 86080, 115132, 143915, 172160, 230264, 287830, 460528, 575660, 921056, 1151320, 1842112, 2302640, 3684224, 4605280, 9210560, 18421120]

約数ペア:

[(1, 18421120), (2, 9210560), (4, 4605280), (5, 3684224), (8, 2302640), (10, 1842112), (16, 1151320), (20, 921056), (32, 575660), (40, 460528), (64, 287830), (80, 230264), (107, 172160), (128, 143915), (160, 115132), (214, 86080), (269, 68480), (320, 57566), (428, 43040), (535, 34432), (538, 34240), (640, 28783), (856, 21520), (1070, 17216), (1076, 17120), (1345, 13696), (1712, 10760), (2140, 8608), (2152, 8560), (2690, 6848), (3424, 5380), (4280, 4304)]