20456580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{367}}^1\times {\mathrm{929}}^1$

素因数の和:1308

約数の個数: 48

約数和(自身を含む): 57496320

約数和(自身を除く): 37039740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 367, 734, 929, 1101, 1468, 1835, 1858, 2202, 2787, 3670, 3716, 4404, 4645, 5505, 5574, 7340, 9290, 11010, 11148, 13935, 18580, 22020, 27870, 55740, 340943, 681886, 1022829, 1363772, 1704715, 2045658, 3409430, 4091316, 5114145, 6818860, 10228290, 20456580]

約数ペア:

[(1, 20456580), (2, 10228290), (3, 6818860), (4, 5114145), (5, 4091316), (6, 3409430), (10, 2045658), (12, 1704715), (15, 1363772), (20, 1022829), (30, 681886), (60, 340943), (367, 55740), (734, 27870), (929, 22020), (1101, 18580), (1468, 13935), (1835, 11148), (1858, 11010), (2202, 9290), (2787, 7340), (3670, 5574), (3716, 5505), (4404, 4645)]