81431880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{678599}}^1$

素因数の和:678613

約数の個数: 32

約数和(自身を含む): 244296000

約数和(自身を除く): 162864120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 678599, 1357198, 2035797, 2714396, 3392995, 4071594, 5428792, 6785990, 8143188, 10178985, 13571980, 16286376, 20357970, 27143960, 40715940, 81431880]

約数ペア:

[(1, 81431880), (2, 40715940), (3, 27143960), (4, 20357970), (5, 16286376), (6, 13571980), (8, 10178985), (10, 8143188), (12, 6785990), (15, 5428792), (20, 4071594), (24, 3392995), (30, 2714396), (40, 2035797), (60, 1357198), (120, 678599)]