1988327740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{330287}}^1$

素因数の和:330346

約数の個数: 48

約数和(自身を含む): 4882977792

約数和(自身を除く): 2894650052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 6020, 330287, 660574, 1321148, 1651435, 2312009, 3302870, 4624018, 6605740, 9248036, 11560045, 14202341, 23120090, 28404682, 46240180, 56809364, 71011705, 99416387, 142023410, 198832774, 284046820, 397665548, 497081935, 994163870, 1988327740]

約数ペア:

[(1, 1988327740), (2, 994163870), (4, 497081935), (5, 397665548), (7, 284046820), (10, 198832774), (14, 142023410), (20, 99416387), (28, 71011705), (35, 56809364), (43, 46240180), (70, 28404682), (86, 23120090), (140, 14202341), (172, 11560045), (215, 9248036), (301, 6605740), (430, 4624018), (602, 3302870), (860, 2312009), (1204, 1651435), (1505, 1321148), (3010, 660574), (6020, 330287)]