89430640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{85991}}^1$

素因数の和:86017

約数の個数: 40

約数和(自身を含む): 223923168

約数和(自身を除く): 134492528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 85991, 171982, 343964, 429955, 687928, 859910, 1117883, 1375856, 1719820, 2235766, 3439640, 4471532, 5589415, 6879280, 8943064, 11178830, 17886128, 22357660, 44715320, 89430640]

約数ペア:

[(1, 89430640), (2, 44715320), (4, 22357660), (5, 17886128), (8, 11178830), (10, 8943064), (13, 6879280), (16, 5589415), (20, 4471532), (26, 3439640), (40, 2235766), (52, 1719820), (65, 1375856), (80, 1117883), (104, 859910), (130, 687928), (208, 429955), (260, 343964), (520, 171982), (1040, 85991)]