20043640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{467}}^1$

素因数の和:544

約数の個数: 64

約数和(自身を含む): 48016800

約数和(自身を除く): 27973160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 37, 40, 58, 74, 116, 145, 148, 185, 232, 290, 296, 370, 467, 580, 740, 934, 1073, 1160, 1480, 1868, 2146, 2335, 3736, 4292, 4670, 5365, 8584, 9340, 10730, 13543, 17279, 18680, 21460, 27086, 34558, 42920, 54172, 67715, 69116, 86395, 108344, 135430, 138232, 172790, 270860, 345580, 501091, 541720, 691160, 1002182, 2004364, 2505455, 4008728, 5010910, 10021820, 20043640]

約数ペア:

[(1, 20043640), (2, 10021820), (4, 5010910), (5, 4008728), (8, 2505455), (10, 2004364), (20, 1002182), (29, 691160), (37, 541720), (40, 501091), (58, 345580), (74, 270860), (116, 172790), (145, 138232), (148, 135430), (185, 108344), (232, 86395), (290, 69116), (296, 67715), (370, 54172), (467, 42920), (580, 34558), (740, 27086), (934, 21460), (1073, 18680), (1160, 17279), (1480, 13543), (1868, 10730), (2146, 9340), (2335, 8584), (3736, 5365), (4292, 4670)]