7990580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 18362064

約数和(自身を除く): 10371484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 421, 730, 842, 949, 1460, 1684, 1898, 2105, 3796, 4210, 4745, 5473, 8420, 9490, 10946, 18980, 21892, 27365, 30733, 54730, 61466, 109460, 122932, 153665, 307330, 399529, 614660, 799058, 1598116, 1997645, 3995290, 7990580]

約数ペア:

[(1, 7990580), (2, 3995290), (4, 1997645), (5, 1598116), (10, 799058), (13, 614660), (20, 399529), (26, 307330), (52, 153665), (65, 122932), (73, 109460), (130, 61466), (146, 54730), (260, 30733), (292, 27365), (365, 21892), (421, 18980), (730, 10946), (842, 9490), (949, 8420), (1460, 5473), (1684, 4745), (1898, 4210), (2105, 3796)]