71333840

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11287}}^1$

素因数の和:11379

約数の個数: 40

約数和(自身を含む): 167965440

約数和(自身を除く): 96631600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 11287, 22574, 45148, 56435, 90296, 112870, 180592, 225740, 451480, 891673, 902960, 1783346, 3566692, 4458365, 7133384, 8916730, 14266768, 17833460, 35666920, 71333840]

約数ペア:

[(1, 71333840), (2, 35666920), (4, 17833460), (5, 14266768), (8, 8916730), (10, 7133384), (16, 4458365), (20, 3566692), (40, 1783346), (79, 902960), (80, 891673), (158, 451480), (316, 225740), (395, 180592), (632, 112870), (790, 90296), (1264, 56435), (1580, 45148), (3160, 22574), (6320, 11287)]