291227980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{359}}^1\times {\mathrm{863}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 627056640

約数和(自身を除く): 335828660

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 359, 470, 718, 863, 940, 1436, 1726, 1795, 3452, 3590, 4315, 7180, 8630, 16873, 17260, 33746, 40561, 67492, 81122, 84365, 162244, 168730, 202805, 309817, 337460, 405610, 619634, 811220, 1239268, 1549085, 3098170, 6196340, 14561399, 29122798, 58245596, 72806995, 145613990, 291227980]

約数ペア:

[(1, 291227980), (2, 145613990), (4, 72806995), (5, 58245596), (10, 29122798), (20, 14561399), (47, 6196340), (94, 3098170), (188, 1549085), (235, 1239268), (359, 811220), (470, 619634), (718, 405610), (863, 337460), (940, 309817), (1436, 202805), (1726, 168730), (1795, 162244), (3452, 84365), (3590, 81122), (4315, 67492), (7180, 40561), (8630, 33746), (16873, 17260)]