27974980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1259}}^1$

素因数の和:1380

約数の個数: 48

約数和(自身を含む): 64774080

約数和(自身を除く): 36799100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 1259, 2020, 2222, 2518, 4444, 5036, 5555, 6295, 11110, 12590, 13849, 22220, 25180, 27698, 55396, 69245, 127159, 138490, 254318, 276980, 508636, 635795, 1271590, 1398749, 2543180, 2797498, 5594996, 6993745, 13987490, 27974980]

約数ペア:

[(1, 27974980), (2, 13987490), (4, 6993745), (5, 5594996), (10, 2797498), (11, 2543180), (20, 1398749), (22, 1271590), (44, 635795), (55, 508636), (101, 276980), (110, 254318), (202, 138490), (220, 127159), (404, 69245), (505, 55396), (1010, 27698), (1111, 25180), (1259, 22220), (2020, 13849), (2222, 12590), (2518, 11110), (4444, 6295), (5036, 5555)]