64671180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{21997}}^1$

素因数の和:22023

約数の個数: 72

約数和(自身を含む): 210652848

約数和(自身を除く): 145981668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 21997, 43994, 65991, 87988, 109985, 131982, 153979, 219970, 263964, 307958, 329955, 439940, 461937, 615916, 659910, 769895, 923874, 1077853, 1319820, 1539790, 1847748, 2155706, 2309685, 3079580, 3233559, 4311412, 4619370, 5389265, 6467118, 9238740, 10778530, 12934236, 16167795, 21557060, 32335590, 64671180]

約数ペア:

[(1, 64671180), (2, 32335590), (3, 21557060), (4, 16167795), (5, 12934236), (6, 10778530), (7, 9238740), (10, 6467118), (12, 5389265), (14, 4619370), (15, 4311412), (20, 3233559), (21, 3079580), (28, 2309685), (30, 2155706), (35, 1847748), (42, 1539790), (49, 1319820), (60, 1077853), (70, 923874), (84, 769895), (98, 659910), (105, 615916), (140, 461937), (147, 439940), (196, 329955), (210, 307958), (245, 263964), (294, 219970), (420, 153979), (490, 131982), (588, 109985), (735, 87988), (980, 65991), (1470, 43994), (2940, 21997)]