20505360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{85439}}^1$

素因数の和:85455

約数の個数: 40

約数和(自身を含む): 63567360

約数和(自身を除く): 43062000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 85439, 170878, 256317, 341756, 427195, 512634, 683512, 854390, 1025268, 1281585, 1367024, 1708780, 2050536, 2563170, 3417560, 4101072, 5126340, 6835120, 10252680, 20505360]

約数ペア:

[(1, 20505360), (2, 10252680), (3, 6835120), (4, 5126340), (5, 4101072), (6, 3417560), (8, 2563170), (10, 2050536), (12, 1708780), (15, 1367024), (16, 1281585), (20, 1025268), (24, 854390), (30, 683512), (40, 512634), (48, 427195), (60, 341756), (80, 256317), (120, 170878), (240, 85439)]