15857780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1439}}^1$

素因数の和:1496

約数の個数: 48

約数和(自身を含む): 36288000

約数和(自身を除く): 20430220

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 1439, 2204, 2755, 2878, 5510, 5756, 7195, 11020, 14390, 27341, 28780, 41731, 54682, 83462, 109364, 136705, 166924, 208655, 273410, 417310, 546820, 792889, 834620, 1585778, 3171556, 3964445, 7928890, 15857780]

約数ペア:

[(1, 15857780), (2, 7928890), (4, 3964445), (5, 3171556), (10, 1585778), (19, 834620), (20, 792889), (29, 546820), (38, 417310), (58, 273410), (76, 208655), (95, 166924), (116, 136705), (145, 109364), (190, 83462), (290, 54682), (380, 41731), (551, 28780), (580, 27341), (1102, 14390), (1439, 11020), (2204, 7195), (2755, 5756), (2878, 5510)]