18109020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7019}}^1$

素因数の和:7074

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 33782820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 7019, 14038, 21057, 28076, 35095, 42114, 70190, 84228, 105285, 140380, 210570, 301817, 421140, 603634, 905451, 1207268, 1509085, 1810902, 3018170, 3621804, 4527255, 6036340, 9054510, 18109020]

約数ペア:

[(1, 18109020), (2, 9054510), (3, 6036340), (4, 4527255), (5, 3621804), (6, 3018170), (10, 1810902), (12, 1509085), (15, 1207268), (20, 905451), (30, 603634), (43, 421140), (60, 301817), (86, 210570), (129, 140380), (172, 105285), (215, 84228), (258, 70190), (430, 42114), (516, 35095), (645, 28076), (860, 21057), (1290, 14038), (2580, 7019)]