12845320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4523}}^1$

素因数の和:4605

約数の個数: 32

約数和(自身を含む): 29315520

約数和(自身を除く): 16470200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4523, 9046, 18092, 22615, 36184, 45230, 90460, 180920, 321133, 642266, 1284532, 1605665, 2569064, 3211330, 6422660, 12845320]

約数ペア:

[(1, 12845320), (2, 6422660), (4, 3211330), (5, 2569064), (8, 1605665), (10, 1284532), (20, 642266), (40, 321133), (71, 180920), (142, 90460), (284, 45230), (355, 36184), (568, 22615), (710, 18092), (1420, 9046), (2840, 4523)]