19158760

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{941}}^1$

素因数の和:1461

約数の個数: 32

約数和(自身を含む): 43237800

約数和(自身を除く): 24079040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 941, 1018, 1882, 2036, 2545, 3764, 4072, 4705, 5090, 7528, 9410, 10180, 18820, 20360, 37640, 478969, 957938, 1915876, 2394845, 3831752, 4789690, 9579380, 19158760]

約数ペア:

[(1, 19158760), (2, 9579380), (4, 4789690), (5, 3831752), (8, 2394845), (10, 1915876), (20, 957938), (40, 478969), (509, 37640), (941, 20360), (1018, 18820), (1882, 10180), (2036, 9410), (2545, 7528), (3764, 5090), (4072, 4705)]