21440975800

素因数分解:

$2^3\times 5^2\times {\mathrm{109}}^1\times {\mathrm{983531}}^1$

素因数の和:983656

約数の個数: 48

約数和(自身を含む): 50307661800

約数和(自身を除く): 28866686000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 200, 218, 436, 545, 872, 1090, 2180, 2725, 4360, 5450, 10900, 21800, 983531, 1967062, 3934124, 4917655, 7868248, 9835310, 19670620, 24588275, 39341240, 49176550, 98353100, 107204879, 196706200, 214409758, 428819516, 536024395, 857639032, 1072048790, 2144097580, 2680121975, 4288195160, 5360243950, 10720487900, 21440975800]

約数ペア:

[(1, 21440975800), (2, 10720487900), (4, 5360243950), (5, 4288195160), (8, 2680121975), (10, 2144097580), (20, 1072048790), (25, 857639032), (40, 536024395), (50, 428819516), (100, 214409758), (109, 196706200), (200, 107204879), (218, 98353100), (436, 49176550), (545, 39341240), (872, 24588275), (1090, 19670620), (2180, 9835310), (2725, 7868248), (4360, 4917655), (5450, 3934124), (10900, 1967062), (21800, 983531)]