19762720

素因数分解:

$2^5\times 5^1\times {\mathrm{123517}}^1$

素因数の和:123532

約数の個数: 24

約数和(自身を含む): 46689804

約数和(自身を除く): 26927084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123517, 247034, 494068, 617585, 988136, 1235170, 1976272, 2470340, 3952544, 4940680, 9881360, 19762720]

約数ペア:

[(1, 19762720), (2, 9881360), (4, 4940680), (5, 3952544), (8, 2470340), (10, 1976272), (16, 1235170), (20, 988136), (32, 617585), (40, 494068), (80, 247034), (160, 123517)]