16981760

素因数分解:

$2^8\times 5^1\times {\mathrm{13267}}^1$

素因数の和:13288

約数の個数: 36

約数和(自身を含む): 40679688

約数和(自身を除く): 23697928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 13267, 26534, 53068, 66335, 106136, 132670, 212272, 265340, 424544, 530680, 849088, 1061360, 1698176, 2122720, 3396352, 4245440, 8490880, 16981760]

約数ペア:

[(1, 16981760), (2, 8490880), (4, 4245440), (5, 3396352), (8, 2122720), (10, 1698176), (16, 1061360), (20, 849088), (32, 530680), (40, 424544), (64, 265340), (80, 212272), (128, 132670), (160, 106136), (256, 66335), (320, 53068), (640, 26534), (1280, 13267)]