2009409020

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{12251}}^1$

素因数の和:12458

約数の個数: 48

約数和(自身を含む): 4322505600

約数和(自身を除く): 2313096580

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 139, 236, 278, 295, 556, 590, 695, 1180, 1390, 2780, 8201, 12251, 16402, 24502, 32804, 41005, 49004, 61255, 82010, 122510, 164020, 245020, 722809, 1445618, 1702889, 2891236, 3405778, 3614045, 6811556, 7228090, 8514445, 14456180, 17028890, 34057780, 100470451, 200940902, 401881804, 502352255, 1004704510, 2009409020]

約数ペア:

[(1, 2009409020), (2, 1004704510), (4, 502352255), (5, 401881804), (10, 200940902), (20, 100470451), (59, 34057780), (118, 17028890), (139, 14456180), (236, 8514445), (278, 7228090), (295, 6811556), (556, 3614045), (590, 3405778), (695, 2891236), (1180, 1702889), (1390, 1445618), (2780, 722809), (8201, 245020), (12251, 164020), (16402, 122510), (24502, 82010), (32804, 61255), (41005, 49004)]