123820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:201

約数の個数: 24

約数和(自身を含む): 268128

約数和(自身を除く): 144308

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 151, 164, 205, 302, 410, 604, 755, 820, 1510, 3020, 6191, 12382, 24764, 30955, 61910, 123820]

約数ペア:

[(1, 123820), (2, 61910), (4, 30955), (5, 24764), (10, 12382), (20, 6191), (41, 3020), (82, 1510), (151, 820), (164, 755), (205, 604), (302, 410)]