20540265

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2053}}^1$

素因数の和:2113

約数の個数: 32

約数和(自身を含む): 35493120

約数和(自身を除く): 14952855

約数列:

[1, 3, 5, 15, 23, 29, 69, 87, 115, 145, 345, 435, 667, 2001, 2053, 3335, 6159, 10005, 10265, 30795, 47219, 59537, 141657, 178611, 236095, 297685, 708285, 893055, 1369351, 4108053, 6846755, 20540265]

約数ペア:

[(1, 20540265), (3, 6846755), (5, 4108053), (15, 1369351), (23, 893055), (29, 708285), (69, 297685), (87, 236095), (115, 178611), (145, 141657), (345, 59537), (435, 47219), (667, 30795), (2001, 10265), (2053, 10005), (3335, 6159)]