320418460

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{1249}}^1$

素因数の和:1486

約数の個数: 48

約数和(自身を含む): 685440000

約数和(自身を除く): 365021540

約数列:

[1, 2, 4, 5, 10, 20, 101, 127, 202, 254, 404, 505, 508, 635, 1010, 1249, 1270, 2020, 2498, 2540, 4996, 6245, 12490, 12827, 24980, 25654, 51308, 64135, 126149, 128270, 158623, 252298, 256540, 317246, 504596, 630745, 634492, 793115, 1261490, 1586230, 2522980, 3172460, 16020923, 32041846, 64083692, 80104615, 160209230, 320418460]

約数ペア:

[(1, 320418460), (2, 160209230), (4, 80104615), (5, 64083692), (10, 32041846), (20, 16020923), (101, 3172460), (127, 2522980), (202, 1586230), (254, 1261490), (404, 793115), (505, 634492), (508, 630745), (635, 504596), (1010, 317246), (1249, 256540), (1270, 252298), (2020, 158623), (2498, 128270), (2540, 126149), (4996, 64135), (6245, 51308), (12490, 25654), (12827, 24980)]