127792640

素因数分解:

$2^9\times 5^1\times {\mathrm{49919}}^1$

素因数の和:49942

約数の個数: 40

約数和(自身を含む): 306408960

約数和(自身を除く): 178616320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 49919, 99838, 199676, 249595, 399352, 499190, 798704, 998380, 1597408, 1996760, 3194816, 3993520, 6389632, 7987040, 12779264, 15974080, 25558528, 31948160, 63896320, 127792640]

約数ペア:

[(1, 127792640), (2, 63896320), (4, 31948160), (5, 25558528), (8, 15974080), (10, 12779264), (16, 7987040), (20, 6389632), (32, 3993520), (40, 3194816), (64, 1996760), (80, 1597408), (128, 998380), (160, 798704), (256, 499190), (320, 399352), (512, 249595), (640, 199676), (1280, 99838), (2560, 49919)]