20457060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26227}}^1$

素因数の和:26252

約数の個数: 48

約数和(自身を含む): 61688256

約数和(自身を除く): 41231196

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26227, 52454, 78681, 104908, 131135, 157362, 262270, 314724, 340951, 393405, 524540, 681902, 786810, 1022853, 1363804, 1573620, 1704755, 2045706, 3409510, 4091412, 5114265, 6819020, 10228530, 20457060]

約数ペア:

[(1, 20457060), (2, 10228530), (3, 6819020), (4, 5114265), (5, 4091412), (6, 3409510), (10, 2045706), (12, 1704755), (13, 1573620), (15, 1363804), (20, 1022853), (26, 786810), (30, 681902), (39, 524540), (52, 393405), (60, 340951), (65, 314724), (78, 262270), (130, 157362), (156, 131135), (195, 104908), (260, 78681), (390, 52454), (780, 26227)]