188278420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{77801}}^1$

素因数の和:77832

約数の個数: 36

約数和(自身を含む): 434601972

約数和(自身を除く): 246323552

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 77801, 155602, 311204, 389005, 778010, 855811, 1556020, 1711622, 3423244, 4279055, 8558110, 9413921, 17116220, 18827842, 37655684, 47069605, 94139210, 188278420]

約数ペア:

[(1, 188278420), (2, 94139210), (4, 47069605), (5, 37655684), (10, 18827842), (11, 17116220), (20, 9413921), (22, 8558110), (44, 4279055), (55, 3423244), (110, 1711622), (121, 1556020), (220, 855811), (242, 778010), (484, 389005), (605, 311204), (1210, 155602), (2420, 77801)]