20013400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{827}}^1$

素因数の和:865

約数の個数: 72

約数和(自身を含む): 51207660

約数和(自身を除く): 31194260

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 121, 200, 220, 242, 275, 440, 484, 550, 605, 827, 968, 1100, 1210, 1654, 2200, 2420, 3025, 3308, 4135, 4840, 6050, 6616, 8270, 9097, 12100, 16540, 18194, 20675, 24200, 33080, 36388, 41350, 45485, 72776, 82700, 90970, 100067, 165400, 181940, 200134, 227425, 363880, 400268, 454850, 500335, 800536, 909700, 1000670, 1819400, 2001340, 2501675, 4002680, 5003350, 10006700, 20013400]

約数ペア:

[(1, 20013400), (2, 10006700), (4, 5003350), (5, 4002680), (8, 2501675), (10, 2001340), (11, 1819400), (20, 1000670), (22, 909700), (25, 800536), (40, 500335), (44, 454850), (50, 400268), (55, 363880), (88, 227425), (100, 200134), (110, 181940), (121, 165400), (200, 100067), (220, 90970), (242, 82700), (275, 72776), (440, 45485), (484, 41350), (550, 36388), (605, 33080), (827, 24200), (968, 20675), (1100, 18194), (1210, 16540), (1654, 12100), (2200, 9097), (2420, 8270), (3025, 6616), (3308, 6050), (4135, 4840)]