40326920

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{3221}}^1$

素因数の和:3545

約数の個数: 32

約数和(自身を含む): 91053720

約数和(自身を除く): 50726800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 3221, 6260, 6442, 12520, 12884, 16105, 25768, 32210, 64420, 128840, 1008173, 2016346, 4032692, 5040865, 8065384, 10081730, 20163460, 40326920]

約数ペア:

[(1, 40326920), (2, 20163460), (4, 10081730), (5, 8065384), (8, 5040865), (10, 4032692), (20, 2016346), (40, 1008173), (313, 128840), (626, 64420), (1252, 32210), (1565, 25768), (2504, 16105), (3130, 12884), (3221, 12520), (6260, 6442)]