19945625

素因数分解:

$5^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:171

約数の個数: 40

約数和(自身を含む): 29390592

約数和(自身を除く): 9444967

約数列:

[1, 5, 7, 25, 35, 47, 97, 125, 175, 235, 329, 485, 625, 679, 875, 1175, 1645, 2425, 3395, 4375, 4559, 5875, 8225, 12125, 16975, 22795, 29375, 31913, 41125, 60625, 84875, 113975, 159565, 205625, 424375, 569875, 797825, 2849375, 3989125, 19945625]

約数ペア:

[(1, 19945625), (5, 3989125), (7, 2849375), (25, 797825), (35, 569875), (47, 424375), (97, 205625), (125, 159565), (175, 113975), (235, 84875), (329, 60625), (485, 41125), (625, 31913), (679, 29375), (875, 22795), (1175, 16975), (1645, 12125), (2425, 8225), (3395, 5875), (4375, 4559)]