20772018840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{878681}}^1$

素因数の和:878892

約数の個数: 64

約数和(自身を含む): 62632452960

約数和(自身を除く): 41860434120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 197, 394, 591, 788, 985, 1182, 1576, 1970, 2364, 2955, 3940, 4728, 5910, 7880, 11820, 23640, 878681, 1757362, 2636043, 3514724, 4393405, 5272086, 7029448, 8786810, 10544172, 13180215, 17573620, 21088344, 26360430, 35147240, 52720860, 105441720, 173100157, 346200314, 519300471, 692400628, 865500785, 1038600942, 1384801256, 1731001570, 2077201884, 2596502355, 3462003140, 4154403768, 5193004710, 6924006280, 10386009420, 20772018840]

約数ペア:

[(1, 20772018840), (2, 10386009420), (3, 6924006280), (4, 5193004710), (5, 4154403768), (6, 3462003140), (8, 2596502355), (10, 2077201884), (12, 1731001570), (15, 1384801256), (20, 1038600942), (24, 865500785), (30, 692400628), (40, 519300471), (60, 346200314), (120, 173100157), (197, 105441720), (394, 52720860), (591, 35147240), (788, 26360430), (985, 21088344), (1182, 17573620), (1576, 13180215), (1970, 10544172), (2364, 8786810), (2955, 7029448), (3940, 5272086), (4728, 4393405), (5910, 3514724), (7880, 2636043), (11820, 1757362), (23640, 878681)]