20793850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{491}}^1$

素因数の和:532

約数の個数: 72

約数和(自身を含む): 48684384

約数和(自身を除く): 27890534

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 121, 154, 175, 242, 275, 350, 385, 491, 550, 605, 770, 847, 982, 1210, 1694, 1925, 2455, 3025, 3437, 3850, 4235, 4910, 5401, 6050, 6874, 8470, 10802, 12275, 17185, 21175, 24550, 27005, 34370, 37807, 42350, 54010, 59411, 75614, 85925, 118822, 135025, 171850, 189035, 270050, 297055, 378070, 415877, 594110, 831754, 945175, 1485275, 1890350, 2079385, 2970550, 4158770, 10396925, 20793850]

約数ペア:

[(1, 20793850), (2, 10396925), (5, 4158770), (7, 2970550), (10, 2079385), (11, 1890350), (14, 1485275), (22, 945175), (25, 831754), (35, 594110), (50, 415877), (55, 378070), (70, 297055), (77, 270050), (110, 189035), (121, 171850), (154, 135025), (175, 118822), (242, 85925), (275, 75614), (350, 59411), (385, 54010), (491, 42350), (550, 37807), (605, 34370), (770, 27005), (847, 24550), (982, 21175), (1210, 17185), (1694, 12275), (1925, 10802), (2455, 8470), (3025, 6874), (3437, 6050), (3850, 5401), (4235, 4910)]