39666920

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2473}}^1$

素因数の和:2885

約数の個数: 32

約数和(自身を含む): 89509320

約数和(自身を除く): 49842400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 2473, 3208, 4010, 4946, 8020, 9892, 12365, 16040, 19784, 24730, 49460, 98920, 991673, 1983346, 3966692, 4958365, 7933384, 9916730, 19833460, 39666920]

約数ペア:

[(1, 39666920), (2, 19833460), (4, 9916730), (5, 7933384), (8, 4958365), (10, 3966692), (20, 1983346), (40, 991673), (401, 98920), (802, 49460), (1604, 24730), (2005, 19784), (2473, 16040), (3208, 12365), (4010, 9892), (4946, 8020)]