28558420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11801}}^1$

素因数の和:11832

約数の個数: 36

約数和(自身を含む): 65925972

約数和(自身を除く): 37367552

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 11801, 23602, 47204, 59005, 118010, 129811, 236020, 259622, 519244, 649055, 1298110, 1427921, 2596220, 2855842, 5711684, 7139605, 14279210, 28558420]

約数ペア:

[(1, 28558420), (2, 14279210), (4, 7139605), (5, 5711684), (10, 2855842), (11, 2596220), (20, 1427921), (22, 1298110), (44, 649055), (55, 519244), (110, 259622), (121, 236020), (220, 129811), (242, 118010), (484, 59005), (605, 47204), (1210, 23602), (2420, 11801)]