64228840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123517}}^1$

素因数の和:123541

約数の個数: 32

約数和(自身を含む): 155632680

約数和(自身を除く): 91403840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 123517, 247034, 494068, 617585, 988136, 1235170, 1605721, 2470340, 3211442, 4940680, 6422884, 8028605, 12845768, 16057210, 32114420, 64228840]

約数ペア:

[(1, 64228840), (2, 32114420), (4, 16057210), (5, 12845768), (8, 8028605), (10, 6422884), (13, 4940680), (20, 3211442), (26, 2470340), (40, 1605721), (52, 1235170), (65, 988136), (104, 617585), (130, 494068), (260, 247034), (520, 123517)]