18791960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42709}}^1$

素因数の和:42731

約数の個数: 32

約数和(自身を含む): 46126800

約数和(自身を除く): 27334840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42709, 85418, 170836, 213545, 341672, 427090, 469799, 854180, 939598, 1708360, 1879196, 2348995, 3758392, 4697990, 9395980, 18791960]

約数ペア:

[(1, 18791960), (2, 9395980), (4, 4697990), (5, 3758392), (8, 2348995), (10, 1879196), (11, 1708360), (20, 939598), (22, 854180), (40, 469799), (44, 427090), (55, 341672), (88, 213545), (110, 170836), (220, 85418), (440, 42709)]