20154495

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{487}}^1$

素因数の和:615

約数の個数: 32

約数和(自身を含む): 33730560

約数和(自身を除く): 13576065

約数列:

[1, 3, 5, 15, 31, 89, 93, 155, 267, 445, 465, 487, 1335, 1461, 2435, 2759, 7305, 8277, 13795, 15097, 41385, 43343, 45291, 75485, 130029, 216715, 226455, 650145, 1343633, 4030899, 6718165, 20154495]

約数ペア:

[(1, 20154495), (3, 6718165), (5, 4030899), (15, 1343633), (31, 650145), (89, 226455), (93, 216715), (155, 130029), (267, 75485), (445, 45291), (465, 43343), (487, 41385), (1335, 15097), (1461, 13795), (2435, 8277), (2759, 7305)]