201527720

素因数分解:

$2^3\times 5^1\times {\mathrm{2143}}^1\times {\mathrm{2351}}^1$

素因数の和:4505

約数の個数: 32

約数和(自身を含む): 453841920

約数和(自身を除く): 252314200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2143, 2351, 4286, 4702, 8572, 9404, 10715, 11755, 17144, 18808, 21430, 23510, 42860, 47020, 85720, 94040, 5038193, 10076386, 20152772, 25190965, 40305544, 50381930, 100763860, 201527720]

約数ペア:

[(1, 201527720), (2, 100763860), (4, 50381930), (5, 40305544), (8, 25190965), (10, 20152772), (20, 10076386), (40, 5038193), (2143, 94040), (2351, 85720), (4286, 47020), (4702, 42860), (8572, 23510), (9404, 21430), (10715, 18808), (11755, 17144)]