20641700

素因数分解:

$2^2\times 5^2\times {\mathrm{151}}^1\times {\mathrm{1367}}^1$

素因数の和:1532

約数の個数: 36

約数和(自身を含む): 45122112

約数和(自身を除く): 24480412

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 151, 302, 604, 755, 1367, 1510, 2734, 3020, 3775, 5468, 6835, 7550, 13670, 15100, 27340, 34175, 68350, 136700, 206417, 412834, 825668, 1032085, 2064170, 4128340, 5160425, 10320850, 20641700]

約数ペア:

[(1, 20641700), (2, 10320850), (4, 5160425), (5, 4128340), (10, 2064170), (20, 1032085), (25, 825668), (50, 412834), (100, 206417), (151, 136700), (302, 68350), (604, 34175), (755, 27340), (1367, 15100), (1510, 13670), (2734, 7550), (3020, 6835), (3775, 5468)]