261431880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2178599}}^1$

素因数の和:2178613

約数の個数: 32

約数和(自身を含む): 784296000

約数和(自身を除く): 522864120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2178599, 4357198, 6535797, 8714396, 10892995, 13071594, 17428792, 21785990, 26143188, 32678985, 43571980, 52286376, 65357970, 87143960, 130715940, 261431880]

約数ペア:

[(1, 261431880), (2, 130715940), (3, 87143960), (4, 65357970), (5, 52286376), (6, 43571980), (8, 32678985), (10, 26143188), (12, 21785990), (15, 17428792), (20, 13071594), (24, 10892995), (30, 8714396), (40, 6535797), (60, 4357198), (120, 2178599)]