508613620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{1289}}^1$

素因数の和:1588

約数の個数: 48

約数和(自身を含む): 1084683600

約数和(自身を除く): 576069980

約数列:

[1, 2, 4, 5, 10, 20, 109, 181, 218, 362, 436, 545, 724, 905, 1090, 1289, 1810, 2180, 2578, 3620, 5156, 6445, 12890, 19729, 25780, 39458, 78916, 98645, 140501, 197290, 233309, 281002, 394580, 466618, 562004, 702505, 933236, 1166545, 1405010, 2333090, 2810020, 4666180, 25430681, 50861362, 101722724, 127153405, 254306810, 508613620]

約数ペア:

[(1, 508613620), (2, 254306810), (4, 127153405), (5, 101722724), (10, 50861362), (20, 25430681), (109, 4666180), (181, 2810020), (218, 2333090), (362, 1405010), (436, 1166545), (545, 933236), (724, 702505), (905, 562004), (1090, 466618), (1289, 394580), (1810, 281002), (2180, 233309), (2578, 197290), (3620, 140501), (5156, 98645), (6445, 78916), (12890, 39458), (19729, 25780)]