12876820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:361

約数の個数: 72

約数和(自身を含む): 31572072

約数和(自身を除く): 18695252

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 121, 170, 187, 220, 242, 313, 340, 374, 484, 605, 626, 748, 935, 1210, 1252, 1565, 1870, 2057, 2420, 3130, 3443, 3740, 4114, 5321, 6260, 6886, 8228, 10285, 10642, 13772, 17215, 20570, 21284, 26605, 34430, 37873, 41140, 53210, 58531, 68860, 75746, 106420, 117062, 151492, 189365, 234124, 292655, 378730, 585310, 643841, 757460, 1170620, 1287682, 2575364, 3219205, 6438410, 12876820]

約数ペア:

[(1, 12876820), (2, 6438410), (4, 3219205), (5, 2575364), (10, 1287682), (11, 1170620), (17, 757460), (20, 643841), (22, 585310), (34, 378730), (44, 292655), (55, 234124), (68, 189365), (85, 151492), (110, 117062), (121, 106420), (170, 75746), (187, 68860), (220, 58531), (242, 53210), (313, 41140), (340, 37873), (374, 34430), (484, 26605), (605, 21284), (626, 20570), (748, 17215), (935, 13772), (1210, 10642), (1252, 10285), (1565, 8228), (1870, 6886), (2057, 6260), (2420, 5321), (3130, 4114), (3443, 3740)]