12720870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{503}}^1$

素因数の和:797

約数の個数: 48

約数和(自身を含む): 33257952

約数和(自身を除く): 20537082

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 281, 503, 562, 843, 1006, 1405, 1509, 1686, 2515, 2529, 2810, 3018, 4215, 4527, 5030, 5058, 7545, 8430, 9054, 12645, 15090, 22635, 25290, 45270, 141343, 282686, 424029, 706715, 848058, 1272087, 1413430, 2120145, 2544174, 4240290, 6360435, 12720870]

約数ペア:

[(1, 12720870), (2, 6360435), (3, 4240290), (5, 2544174), (6, 2120145), (9, 1413430), (10, 1272087), (15, 848058), (18, 706715), (30, 424029), (45, 282686), (90, 141343), (281, 45270), (503, 25290), (562, 22635), (843, 15090), (1006, 12645), (1405, 9054), (1509, 8430), (1686, 7545), (2515, 5058), (2529, 5030), (2810, 4527), (3018, 4215)]