215771840

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9497}}^1$

素因数の和:9585

約数の個数: 56

約数和(自身を含む): 521098272

約数和(自身を除く): 305326432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 4544, 5680, 9497, 11360, 18994, 22720, 37988, 47485, 75976, 94970, 151952, 189940, 303904, 379880, 607808, 674287, 759760, 1348574, 1519520, 2697148, 3039040, 3371435, 5394296, 6742870, 10788592, 13485740, 21577184, 26971480, 43154368, 53942960, 107885920, 215771840]

約数ペア:

[(1, 215771840), (2, 107885920), (4, 53942960), (5, 43154368), (8, 26971480), (10, 21577184), (16, 13485740), (20, 10788592), (32, 6742870), (40, 5394296), (64, 3371435), (71, 3039040), (80, 2697148), (142, 1519520), (160, 1348574), (284, 759760), (320, 674287), (355, 607808), (568, 379880), (710, 303904), (1136, 189940), (1420, 151952), (2272, 94970), (2840, 75976), (4544, 47485), (5680, 37988), (9497, 22720), (11360, 18994)]