80112640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{15647}}^1$

素因数の和:15672

約数の個数: 44

約数和(自身を含む): 192188736

約数和(自身を除く): 112076096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 15647, 31294, 62588, 78235, 125176, 156470, 250352, 312940, 500704, 625880, 1001408, 1251760, 2002816, 2503520, 4005632, 5007040, 8011264, 10014080, 16022528, 20028160, 40056320, 80112640]

約数ペア:

[(1, 80112640), (2, 40056320), (4, 20028160), (5, 16022528), (8, 10014080), (10, 8011264), (16, 5007040), (20, 4005632), (32, 2503520), (40, 2002816), (64, 1251760), (80, 1001408), (128, 625880), (160, 500704), (256, 312940), (320, 250352), (512, 156470), (640, 125176), (1024, 78235), (1280, 62588), (2560, 31294), (5120, 15647)]