28981460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1439}}^1$

素因数の和:1520

約数の個数: 48

約数和(自身を含む): 65318400

約数和(自身を除く): 36336940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1060, 1439, 2014, 2878, 4028, 5035, 5756, 7195, 10070, 14390, 20140, 27341, 28780, 54682, 76267, 109364, 136705, 152534, 273410, 305068, 381335, 546820, 762670, 1449073, 1525340, 2898146, 5796292, 7245365, 14490730, 28981460]

約数ペア:

[(1, 28981460), (2, 14490730), (4, 7245365), (5, 5796292), (10, 2898146), (19, 1525340), (20, 1449073), (38, 762670), (53, 546820), (76, 381335), (95, 305068), (106, 273410), (190, 152534), (212, 136705), (265, 109364), (380, 76267), (530, 54682), (1007, 28780), (1060, 27341), (1439, 20140), (2014, 14390), (2878, 10070), (4028, 7195), (5035, 5756)]