31298740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1259}}^1$

素因数の和:1392

約数の個数: 48

約数和(自身を含む): 72394560

約数和(自身を除く): 41095820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 220, 226, 452, 565, 1130, 1243, 1259, 2260, 2486, 2518, 4972, 5036, 6215, 6295, 12430, 12590, 13849, 24860, 25180, 27698, 55396, 69245, 138490, 142267, 276980, 284534, 569068, 711335, 1422670, 1564937, 2845340, 3129874, 6259748, 7824685, 15649370, 31298740]

約数ペア:

[(1, 31298740), (2, 15649370), (4, 7824685), (5, 6259748), (10, 3129874), (11, 2845340), (20, 1564937), (22, 1422670), (44, 711335), (55, 569068), (110, 284534), (113, 276980), (220, 142267), (226, 138490), (452, 69245), (565, 55396), (1130, 27698), (1243, 25180), (1259, 24860), (2260, 13849), (2486, 12590), (2518, 12430), (4972, 6295), (5036, 6215)]