89987320

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{28477}}^1$

素因数の和:28567

約数の個数: 32

約数和(自身を含む): 205041600

約数和(自身を除く): 115054280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 28477, 56954, 113908, 142385, 227816, 284770, 569540, 1139080, 2249683, 4499366, 8998732, 11248415, 17997464, 22496830, 44993660, 89987320]

約数ペア:

[(1, 89987320), (2, 44993660), (4, 22496830), (5, 17997464), (8, 11248415), (10, 8998732), (20, 4499366), (40, 2249683), (79, 1139080), (158, 569540), (316, 284770), (395, 227816), (632, 142385), (790, 113908), (1580, 56954), (3160, 28477)]