18984875

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1669}}^1$

素因数の和:1704

約数の個数: 32

約数和(自身を含む): 29178240

約数和(自身を除く): 10193365

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 125, 175, 325, 455, 875, 1625, 1669, 2275, 8345, 11375, 11683, 21697, 41725, 58415, 108485, 151879, 208625, 292075, 542425, 759395, 1460375, 2712125, 3796975, 18984875]

約数ペア:

[(1, 18984875), (5, 3796975), (7, 2712125), (13, 1460375), (25, 759395), (35, 542425), (65, 292075), (91, 208625), (125, 151879), (175, 108485), (325, 58415), (455, 41725), (875, 21697), (1625, 11683), (1669, 11375), (2275, 8345)]