205656220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{133543}}^1$

素因数の和:133570

約数の個数: 48

約数和(自身を含む): 538449408

約数和(自身を除く): 332793188

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 133543, 267086, 534172, 667715, 934801, 1335430, 1468973, 1869602, 2670860, 2937946, 3739204, 4674005, 5875892, 7344865, 9348010, 10282811, 14689730, 18696020, 20565622, 29379460, 41131244, 51414055, 102828110, 205656220]

約数ペア:

[(1, 205656220), (2, 102828110), (4, 51414055), (5, 41131244), (7, 29379460), (10, 20565622), (11, 18696020), (14, 14689730), (20, 10282811), (22, 9348010), (28, 7344865), (35, 5875892), (44, 4674005), (55, 3739204), (70, 2937946), (77, 2670860), (110, 1869602), (140, 1468973), (154, 1335430), (220, 934801), (308, 667715), (385, 534172), (770, 267086), (1540, 133543)]