2498405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:78

約数の個数: 48

約数和(自身を含む): 4126080

約数和(自身を除く): 1627675

約数列:

[1, 5, 7, 13, 17, 19, 35, 65, 85, 91, 95, 119, 133, 221, 247, 289, 323, 455, 595, 665, 1105, 1235, 1445, 1547, 1615, 1729, 2023, 2261, 3757, 4199, 5491, 7735, 8645, 10115, 11305, 18785, 20995, 26299, 27455, 29393, 38437, 71383, 131495, 146965, 192185, 356915, 499681, 2498405]

約数ペア:

[(1, 2498405), (5, 499681), (7, 356915), (13, 192185), (17, 146965), (19, 131495), (35, 71383), (65, 38437), (85, 29393), (91, 27455), (95, 26299), (119, 20995), (133, 18785), (221, 11305), (247, 10115), (289, 8645), (323, 7735), (455, 5491), (595, 4199), (665, 3757), (1105, 2261), (1235, 2023), (1445, 1729), (1547, 1615)]