20512902320

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5963053}}^1$

素因数の和:5963109

約数の個数: 40

約数和(自身を含む): 48801633936

約数和(自身を除く): 28288731616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5963053, 11926106, 23852212, 29815265, 47704424, 59630530, 95408848, 119261060, 238522120, 256411279, 477044240, 512822558, 1025645116, 1282056395, 2051290232, 2564112790, 4102580464, 5128225580, 10256451160, 20512902320]

約数ペア:

[(1, 20512902320), (2, 10256451160), (4, 5128225580), (5, 4102580464), (8, 2564112790), (10, 2051290232), (16, 1282056395), (20, 1025645116), (40, 512822558), (43, 477044240), (80, 256411279), (86, 238522120), (172, 119261060), (215, 95408848), (344, 59630530), (430, 47704424), (688, 29815265), (860, 23852212), (1720, 11926106), (3440, 5963053)]