9287980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 21238560

約数和(自身を除く): 11950580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 257, 260, 278, 514, 556, 695, 1028, 1285, 1390, 1807, 2570, 2780, 3341, 3614, 5140, 6682, 7228, 9035, 13364, 16705, 18070, 33410, 35723, 36140, 66820, 71446, 142892, 178615, 357230, 464399, 714460, 928798, 1857596, 2321995, 4643990, 9287980]

約数ペア:

[(1, 9287980), (2, 4643990), (4, 2321995), (5, 1857596), (10, 928798), (13, 714460), (20, 464399), (26, 357230), (52, 178615), (65, 142892), (130, 71446), (139, 66820), (257, 36140), (260, 35723), (278, 33410), (514, 18070), (556, 16705), (695, 13364), (1028, 9035), (1285, 7228), (1390, 6682), (1807, 5140), (2570, 3614), (2780, 3341)]