20343475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{317}}^1$

素因数の和:495

約数の個数: 24

約数和(自身を含む): 26971488

約数和(自身を除く): 6628013

約数列:

[1, 5, 17, 25, 85, 151, 317, 425, 755, 1585, 2567, 3775, 5389, 7925, 12835, 26945, 47867, 64175, 134725, 239335, 813739, 1196675, 4068695, 20343475]

約数ペア:

[(1, 20343475), (5, 4068695), (17, 1196675), (25, 813739), (85, 239335), (151, 134725), (317, 64175), (425, 47867), (755, 26945), (1585, 12835), (2567, 7925), (3775, 5389)]