20129265

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1811}}^1$

素因数の和:1854

約数の個数: 48

約数和(自身を含む): 39574080

約数和(自身を除く): 19444815

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 741, 855, 1235, 1811, 2223, 3705, 5433, 9055, 11115, 16299, 23543, 27165, 34409, 70629, 81495, 103227, 117715, 172045, 211887, 309681, 353145, 447317, 516135, 1059435, 1341951, 1548405, 2236585, 4025853, 6709755, 20129265]

約数ペア:

[(1, 20129265), (3, 6709755), (5, 4025853), (9, 2236585), (13, 1548405), (15, 1341951), (19, 1059435), (39, 516135), (45, 447317), (57, 353145), (65, 309681), (95, 211887), (117, 172045), (171, 117715), (195, 103227), (247, 81495), (285, 70629), (585, 34409), (741, 27165), (855, 23543), (1235, 16299), (1811, 11115), (2223, 9055), (3705, 5433)]