20649250

素因数分解:

$2^1\times 5^3\times {\mathrm{151}}^1\times {\mathrm{547}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 38982528

約数和(自身を除く): 18333278

約数列:

[1, 2, 5, 10, 25, 50, 125, 151, 250, 302, 547, 755, 1094, 1510, 2735, 3775, 5470, 7550, 13675, 18875, 27350, 37750, 68375, 82597, 136750, 165194, 412985, 825970, 2064925, 4129850, 10324625, 20649250]

約数ペア:

[(1, 20649250), (2, 10324625), (5, 4129850), (10, 2064925), (25, 825970), (50, 412985), (125, 165194), (151, 136750), (250, 82597), (302, 68375), (547, 37750), (755, 27350), (1094, 18875), (1510, 13675), (2735, 7550), (3775, 5470)]