1627980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 4671744

約数和(自身を除く): 3043764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 631, 645, 860, 1262, 1290, 1893, 2524, 2580, 3155, 3786, 6310, 7572, 9465, 12620, 18930, 27133, 37860, 54266, 81399, 108532, 135665, 162798, 271330, 325596, 406995, 542660, 813990, 1627980]

約数ペア:

[(1, 1627980), (2, 813990), (3, 542660), (4, 406995), (5, 325596), (6, 271330), (10, 162798), (12, 135665), (15, 108532), (20, 81399), (30, 54266), (43, 37860), (60, 27133), (86, 18930), (129, 12620), (172, 9465), (215, 7572), (258, 6310), (430, 3786), (516, 3155), (631, 2580), (645, 2524), (860, 1893), (1262, 1290)]