8520980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2521}}^1$

素因数の和:2556

約数の個数: 36

約数和(自身を含む): 19384092

約数和(自身を除く): 10863112

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 2521, 3380, 5042, 10084, 12605, 25210, 32773, 50420, 65546, 131092, 163865, 327730, 426049, 655460, 852098, 1704196, 2130245, 4260490, 8520980]

約数ペア:

[(1, 8520980), (2, 4260490), (4, 2130245), (5, 1704196), (10, 852098), (13, 655460), (20, 426049), (26, 327730), (52, 163865), (65, 131092), (130, 65546), (169, 50420), (260, 32773), (338, 25210), (676, 12605), (845, 10084), (1690, 5042), (2521, 3380)]