18693920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{16691}}^1$

素因数の和:16713

約数の個数: 48

約数和(自身を含む): 50476608

約数和(自身を除く): 31782688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 16691, 33382, 66764, 83455, 116837, 133528, 166910, 233674, 267056, 333820, 467348, 534112, 584185, 667640, 934696, 1168370, 1335280, 1869392, 2336740, 2670560, 3738784, 4673480, 9346960, 18693920]

約数ペア:

[(1, 18693920), (2, 9346960), (4, 4673480), (5, 3738784), (7, 2670560), (8, 2336740), (10, 1869392), (14, 1335280), (16, 1168370), (20, 934696), (28, 667640), (32, 584185), (35, 534112), (40, 467348), (56, 333820), (70, 267056), (80, 233674), (112, 166910), (140, 133528), (160, 116837), (224, 83455), (280, 66764), (560, 33382), (1120, 16691)]