7984990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 15603840

約数和(自身を除く): 7618850

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 239, 257, 478, 514, 1195, 1285, 2390, 2570, 3107, 3341, 6214, 6682, 15535, 16705, 31070, 33410, 61423, 122846, 307115, 614230, 798499, 1596998, 3992495, 7984990]

約数ペア:

[(1, 7984990), (2, 3992495), (5, 1596998), (10, 798499), (13, 614230), (26, 307115), (65, 122846), (130, 61423), (239, 33410), (257, 31070), (478, 16705), (514, 15535), (1195, 6682), (1285, 6214), (2390, 3341), (2570, 3107)]