18942225

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 33331200

約数和(自身を除く): 14388975

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 79, 115, 139, 237, 345, 395, 417, 575, 695, 1185, 1725, 1817, 1975, 2085, 3197, 3475, 5451, 5925, 9085, 9591, 10425, 10981, 15985, 27255, 32943, 45425, 47955, 54905, 79925, 136275, 164715, 239775, 252563, 274525, 757689, 823575, 1262815, 3788445, 6314075, 18942225]

約数ペア:

[(1, 18942225), (3, 6314075), (5, 3788445), (15, 1262815), (23, 823575), (25, 757689), (69, 274525), (75, 252563), (79, 239775), (115, 164715), (139, 136275), (237, 79925), (345, 54905), (395, 47955), (417, 45425), (575, 32943), (695, 27255), (1185, 15985), (1725, 10981), (1817, 10425), (1975, 9591), (2085, 9085), (3197, 5925), (3475, 5451)]