28728260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1949}}^1$

素因数の和:2036

約数の個数: 48

約数和(自身を含む): 66830400

約数和(自身を除く): 38102140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 1949, 2948, 3685, 3898, 7370, 7796, 9745, 14740, 19490, 21439, 38980, 42878, 85756, 107195, 130583, 214390, 261166, 428780, 522332, 652915, 1305830, 1436413, 2611660, 2872826, 5745652, 7182065, 14364130, 28728260]

約数ペア:

[(1, 28728260), (2, 14364130), (4, 7182065), (5, 5745652), (10, 2872826), (11, 2611660), (20, 1436413), (22, 1305830), (44, 652915), (55, 522332), (67, 428780), (110, 261166), (134, 214390), (220, 130583), (268, 107195), (335, 85756), (670, 42878), (737, 38980), (1340, 21439), (1474, 19490), (1949, 14740), (2948, 9745), (3685, 7796), (3898, 7370)]