977280040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{21991}}^1$

素因数の和:22114

約数の個数: 64

約数和(自身を含む): 2422638720

約数和(自身を除く): 1445358680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 101, 110, 202, 220, 404, 440, 505, 808, 1010, 1111, 2020, 2222, 4040, 4444, 5555, 8888, 11110, 21991, 22220, 43982, 44440, 87964, 109955, 175928, 219910, 241901, 439820, 483802, 879640, 967604, 1209505, 1935208, 2221091, 2419010, 4442182, 4838020, 8884364, 9676040, 11105455, 17768728, 22210910, 24432001, 44421820, 48864002, 88843640, 97728004, 122160005, 195456008, 244320010, 488640020, 977280040]

約数ペア:

[(1, 977280040), (2, 488640020), (4, 244320010), (5, 195456008), (8, 122160005), (10, 97728004), (11, 88843640), (20, 48864002), (22, 44421820), (40, 24432001), (44, 22210910), (55, 17768728), (88, 11105455), (101, 9676040), (110, 8884364), (202, 4838020), (220, 4442182), (404, 2419010), (440, 2221091), (505, 1935208), (808, 1209505), (1010, 967604), (1111, 879640), (2020, 483802), (2222, 439820), (4040, 241901), (4444, 219910), (5555, 175928), (8888, 109955), (11110, 87964), (21991, 44440), (22220, 43982)]