491133740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{4139}}^1$

素因数の和:4514

約数の個数: 48

約数和(自身を含む): 1095444000

約数和(自身を除く): 604310260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 349, 698, 1396, 1745, 3490, 4139, 5933, 6980, 8278, 11866, 16556, 20695, 23732, 29665, 41390, 59330, 70363, 82780, 118660, 140726, 281452, 351815, 703630, 1407260, 1444511, 2889022, 5778044, 7222555, 14445110, 24556687, 28890220, 49113374, 98226748, 122783435, 245566870, 491133740]

約数ペア:

[(1, 491133740), (2, 245566870), (4, 122783435), (5, 98226748), (10, 49113374), (17, 28890220), (20, 24556687), (34, 14445110), (68, 7222555), (85, 5778044), (170, 2889022), (340, 1444511), (349, 1407260), (698, 703630), (1396, 351815), (1745, 281452), (3490, 140726), (4139, 118660), (5933, 82780), (6980, 70363), (8278, 59330), (11866, 41390), (16556, 29665), (20695, 23732)]