19872875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:272

約数の個数: 32

約数和(自身を含む): 27518400

約数和(自身を除く): 7645525

約数列:

[1, 5, 11, 25, 55, 97, 125, 149, 275, 485, 745, 1067, 1375, 1639, 2425, 3725, 5335, 8195, 12125, 14453, 18625, 26675, 40975, 72265, 133375, 158983, 204875, 361325, 794915, 1806625, 3974575, 19872875]

約数ペア:

[(1, 19872875), (5, 3974575), (11, 1806625), (25, 794915), (55, 361325), (97, 204875), (125, 158983), (149, 133375), (275, 72265), (485, 40975), (745, 26675), (1067, 18625), (1375, 14453), (1639, 12125), (2425, 8195), (3725, 5335)]