20218979390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4349}}^1\times {\mathrm{24469}}^1$

素因数の和:28844

約数の個数: 32

約数和(自身を含む): 38320020000

約数和(自身を除く): 18101040610

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 4349, 8698, 21745, 24469, 43490, 48938, 82631, 122345, 165262, 244690, 413155, 464911, 826310, 929822, 2324555, 4649110, 106415681, 212831362, 532078405, 1064156810, 2021897939, 4043795878, 10109489695, 20218979390]

約数ペア:

[(1, 20218979390), (2, 10109489695), (5, 4043795878), (10, 2021897939), (19, 1064156810), (38, 532078405), (95, 212831362), (190, 106415681), (4349, 4649110), (8698, 2324555), (21745, 929822), (24469, 826310), (43490, 464911), (48938, 413155), (82631, 244690), (122345, 165262)]