20440005

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{389}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 13705275

約数列:

[1, 3, 5, 15, 31, 93, 113, 155, 339, 389, 465, 565, 1167, 1695, 1945, 3503, 5835, 10509, 12059, 17515, 36177, 43957, 52545, 60295, 131871, 180885, 219785, 659355, 1362667, 4088001, 6813335, 20440005]

約数ペア:

[(1, 20440005), (3, 6813335), (5, 4088001), (15, 1362667), (31, 659355), (93, 219785), (113, 180885), (155, 131871), (339, 60295), (389, 52545), (465, 43957), (565, 36177), (1167, 17515), (1695, 12059), (1945, 10509), (3503, 5835)]