7988500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1229}}^1$

素因数の和:1261

約数の個数: 48

約数和(自身を含む): 18804240

約数和(自身を除く): 10815740

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1229, 1300, 1625, 2458, 3250, 4916, 6145, 6500, 12290, 15977, 24580, 30725, 31954, 61450, 63908, 79885, 122900, 153625, 159770, 307250, 319540, 399425, 614500, 798850, 1597700, 1997125, 3994250, 7988500]

約数ペア:

[(1, 7988500), (2, 3994250), (4, 1997125), (5, 1597700), (10, 798850), (13, 614500), (20, 399425), (25, 319540), (26, 307250), (50, 159770), (52, 153625), (65, 122900), (100, 79885), (125, 63908), (130, 61450), (250, 31954), (260, 30725), (325, 24580), (500, 15977), (650, 12290), (1229, 6500), (1300, 6145), (1625, 4916), (2458, 3250)]