1318900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{109}}^1$

素因数の和:145

約数の個数: 54

約数和(自身を含む): 3174710

約数和(自身を除く): 1855810

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 109, 110, 121, 218, 220, 242, 275, 436, 484, 545, 550, 605, 1090, 1100, 1199, 1210, 2180, 2398, 2420, 2725, 3025, 4796, 5450, 5995, 6050, 10900, 11990, 12100, 13189, 23980, 26378, 29975, 52756, 59950, 65945, 119900, 131890, 263780, 329725, 659450, 1318900]

約数ペア:

[(1, 1318900), (2, 659450), (4, 329725), (5, 263780), (10, 131890), (11, 119900), (20, 65945), (22, 59950), (25, 52756), (44, 29975), (50, 26378), (55, 23980), (100, 13189), (109, 12100), (110, 11990), (121, 10900), (218, 6050), (220, 5995), (242, 5450), (275, 4796), (436, 3025), (484, 2725), (545, 2420), (550, 2398), (605, 2180), (1090, 1210), (1100, 1199)]