85621840

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10391}}^1$

素因数の和:10507

約数の個数: 40

約数和(自身を含む): 201022848

約数和(自身を除く): 115401008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 10391, 20782, 41564, 51955, 83128, 103910, 166256, 207820, 415640, 831280, 1070273, 2140546, 4281092, 5351365, 8562184, 10702730, 17124368, 21405460, 42810920, 85621840]

約数ペア:

[(1, 85621840), (2, 42810920), (4, 21405460), (5, 17124368), (8, 10702730), (10, 8562184), (16, 5351365), (20, 4281092), (40, 2140546), (80, 1070273), (103, 831280), (206, 415640), (412, 207820), (515, 166256), (824, 103910), (1030, 83128), (1648, 51955), (2060, 41564), (4120, 20782), (8240, 10391)]