19988625

素因数分解:

$3^1\times 5^3\times {\mathrm{151}}^1\times {\mathrm{353}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 33576192

約数和(自身を除く): 13587567

約数列:

[1, 3, 5, 15, 25, 75, 125, 151, 353, 375, 453, 755, 1059, 1765, 2265, 3775, 5295, 8825, 11325, 18875, 26475, 44125, 53303, 56625, 132375, 159909, 266515, 799545, 1332575, 3997725, 6662875, 19988625]

約数ペア:

[(1, 19988625), (3, 6662875), (5, 3997725), (15, 1332575), (25, 799545), (75, 266515), (125, 159909), (151, 132375), (353, 56625), (375, 53303), (453, 44125), (755, 26475), (1059, 18875), (1765, 11325), (2265, 8825), (3775, 5295)]