20281600

素因数分解:

$2^8\times 5^2\times {\mathrm{3169}}^1$

素因数の和:3195

約数の個数: 54

約数和(自身を含む): 50215970

約数和(自身を除く): 29934370

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3169, 3200, 6338, 6400, 12676, 15845, 25352, 31690, 50704, 63380, 79225, 101408, 126760, 158450, 202816, 253520, 316900, 405632, 507040, 633800, 811264, 1014080, 1267600, 2028160, 2535200, 4056320, 5070400, 10140800, 20281600]

約数ペア:

[(1, 20281600), (2, 10140800), (4, 5070400), (5, 4056320), (8, 2535200), (10, 2028160), (16, 1267600), (20, 1014080), (25, 811264), (32, 633800), (40, 507040), (50, 405632), (64, 316900), (80, 253520), (100, 202816), (128, 158450), (160, 126760), (200, 101408), (256, 79225), (320, 63380), (400, 50704), (640, 31690), (800, 25352), (1280, 15845), (1600, 12676), (3169, 6400), (3200, 6338)]