1078515

素因数分解:

$3^4\times 5^1\times {\mathrm{2663}}^1$

素因数の和:2680

約数の個数: 20

約数和(自身を含む): 1934064

約数和(自身を除く): 855549

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2663, 7989, 13315, 23967, 39945, 71901, 119835, 215703, 359505, 1078515]

約数ペア:

[(1, 1078515), (3, 359505), (5, 215703), (9, 119835), (15, 71901), (27, 39945), (45, 23967), (81, 13315), (135, 7989), (405, 2663)]