25439640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{211997}}^1$

素因数の和:212011

約数の個数: 32

約数和(自身を含む): 76319280

約数和(自身を除く): 50879640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 211997, 423994, 635991, 847988, 1059985, 1271982, 1695976, 2119970, 2543964, 3179955, 4239940, 5087928, 6359910, 8479880, 12719820, 25439640]

約数ペア:

[(1, 25439640), (2, 12719820), (3, 8479880), (4, 6359910), (5, 5087928), (6, 4239940), (8, 3179955), (10, 2543964), (12, 2119970), (15, 1695976), (20, 1271982), (24, 1059985), (30, 847988), (40, 635991), (60, 423994), (120, 211997)]