18992825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 27319680

約数和(自身を除く): 8326855

約数列:

[1, 5, 17, 23, 25, 29, 67, 85, 115, 145, 335, 391, 425, 493, 575, 667, 725, 1139, 1541, 1675, 1943, 1955, 2465, 3335, 5695, 7705, 9715, 9775, 11339, 12325, 16675, 26197, 28475, 33031, 38525, 44689, 48575, 56695, 130985, 165155, 223445, 283475, 654925, 759713, 825775, 1117225, 3798565, 18992825]

約数ペア:

[(1, 18992825), (5, 3798565), (17, 1117225), (23, 825775), (25, 759713), (29, 654925), (67, 283475), (85, 223445), (115, 165155), (145, 130985), (335, 56695), (391, 48575), (425, 44689), (493, 38525), (575, 33031), (667, 28475), (725, 26197), (1139, 16675), (1541, 12325), (1675, 11339), (1943, 9775), (1955, 9715), (2465, 7705), (3335, 5695)]