51881220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6703}}^1$

素因数の和:6761

約数の個数: 72

約数和(自身を含む): 161056896

約数和(自身を除く): 109175676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 6703, 7740, 13406, 20109, 26812, 33515, 40218, 60327, 67030, 80436, 100545, 120654, 134060, 201090, 241308, 288229, 301635, 402180, 576458, 603270, 864687, 1152916, 1206540, 1441145, 1729374, 2594061, 2882290, 3458748, 4323435, 5188122, 5764580, 8646870, 10376244, 12970305, 17293740, 25940610, 51881220]

約数ペア:

[(1, 51881220), (2, 25940610), (3, 17293740), (4, 12970305), (5, 10376244), (6, 8646870), (9, 5764580), (10, 5188122), (12, 4323435), (15, 3458748), (18, 2882290), (20, 2594061), (30, 1729374), (36, 1441145), (43, 1206540), (45, 1152916), (60, 864687), (86, 603270), (90, 576458), (129, 402180), (172, 301635), (180, 288229), (215, 241308), (258, 201090), (387, 134060), (430, 120654), (516, 100545), (645, 80436), (774, 67030), (860, 60327), (1290, 40218), (1548, 33515), (1935, 26812), (2580, 20109), (3870, 13406), (6703, 7740)]