131018715

素因数分解:

$3^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3203}}^1$

素因数の和:3321

約数の個数: 40

約数和(自身を含む): 237262608

約数和(自身を除く): 106243893

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 101, 135, 303, 405, 505, 909, 1515, 2727, 3203, 4545, 8181, 9609, 13635, 16015, 28827, 40905, 48045, 86481, 144135, 259443, 323503, 432405, 970509, 1297215, 1617515, 2911527, 4852545, 8734581, 14557635, 26203743, 43672905, 131018715]

約数ペア:

[(1, 131018715), (3, 43672905), (5, 26203743), (9, 14557635), (15, 8734581), (27, 4852545), (45, 2911527), (81, 1617515), (101, 1297215), (135, 970509), (303, 432405), (405, 323503), (505, 259443), (909, 144135), (1515, 86481), (2727, 48045), (3203, 40905), (4545, 28827), (8181, 16015), (9609, 13635)]