20652884

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 42725760

約数和(自身を除く): 22072876

約数列:

[1, 2, 4, 7, 14, 28, 67, 101, 109, 134, 202, 218, 268, 404, 436, 469, 707, 763, 938, 1414, 1526, 1876, 2828, 3052, 6767, 7303, 11009, 13534, 14606, 22018, 27068, 29212, 44036, 47369, 51121, 77063, 94738, 102242, 154126, 189476, 204484, 308252, 737603, 1475206, 2950412, 5163221, 10326442, 20652884]

約数ペア:

[(1, 20652884), (2, 10326442), (4, 5163221), (7, 2950412), (14, 1475206), (28, 737603), (67, 308252), (101, 204484), (109, 189476), (134, 154126), (202, 102242), (218, 94738), (268, 77063), (404, 51121), (436, 47369), (469, 44036), (707, 29212), (763, 27068), (938, 22018), (1414, 14606), (1526, 13534), (1876, 11009), (2828, 7303), (3052, 6767)]