21058320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87743}}^1$

素因数の和:87759

約数の個数: 40

約数和(自身を含む): 65281536

約数和(自身を除く): 44223216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87743, 175486, 263229, 350972, 438715, 526458, 701944, 877430, 1052916, 1316145, 1403888, 1754860, 2105832, 2632290, 3509720, 4211664, 5264580, 7019440, 10529160, 21058320]

約数ペア:

[(1, 21058320), (2, 10529160), (3, 7019440), (4, 5264580), (5, 4211664), (6, 3509720), (8, 2632290), (10, 2105832), (12, 1754860), (15, 1403888), (16, 1316145), (20, 1052916), (24, 877430), (30, 701944), (40, 526458), (48, 438715), (60, 350972), (80, 263229), (120, 175486), (240, 87743)]