201529520

素因数分解:

$2^4\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{2309}}^1$

素因数の和:3413

約数の個数: 40

約数和(自身を含む): 469188720

約数和(自身を除く): 267659200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1091, 2182, 2309, 4364, 4618, 5455, 8728, 9236, 10910, 11545, 17456, 18472, 21820, 23090, 36944, 43640, 46180, 87280, 92360, 184720, 2519119, 5038238, 10076476, 12595595, 20152952, 25191190, 40305904, 50382380, 100764760, 201529520]

約数ペア:

[(1, 201529520), (2, 100764760), (4, 50382380), (5, 40305904), (8, 25191190), (10, 20152952), (16, 12595595), (20, 10076476), (40, 5038238), (80, 2519119), (1091, 184720), (2182, 92360), (2309, 87280), (4364, 46180), (4618, 43640), (5455, 36944), (8728, 23090), (9236, 21820), (10910, 18472), (11545, 17456)]