159690880

素因数分解:

$2^7\times 5^1\times {\mathrm{249517}}^1$

素因数の和:249536

約数の個数: 32

約数和(自身を含む): 381762540

約数和(自身を除く): 222071660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 249517, 499034, 998068, 1247585, 1996136, 2495170, 3992272, 4990340, 7984544, 9980680, 15969088, 19961360, 31938176, 39922720, 79845440, 159690880]

約数ペア:

[(1, 159690880), (2, 79845440), (4, 39922720), (5, 31938176), (8, 19961360), (10, 15969088), (16, 9980680), (20, 7984544), (32, 4990340), (40, 3992272), (64, 2495170), (80, 1996136), (128, 1247585), (160, 998068), (320, 499034), (640, 249517)]