217690020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{3191}}^1$

素因数の和:3585

約数の個数: 72

約数和(自身を含む): 662276160

約数和(自身を除く): 444586140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 379, 758, 1137, 1516, 1895, 2274, 3191, 3411, 3790, 4548, 5685, 6382, 6822, 7580, 9573, 11370, 12764, 13644, 15955, 17055, 19146, 22740, 28719, 31910, 34110, 38292, 47865, 57438, 63820, 68220, 95730, 114876, 143595, 191460, 287190, 574380, 1209389, 2418778, 3628167, 4837556, 6046945, 7256334, 10884501, 12093890, 14512668, 18140835, 21769002, 24187780, 36281670, 43538004, 54422505, 72563340, 108845010, 217690020]

約数ペア:

[(1, 217690020), (2, 108845010), (3, 72563340), (4, 54422505), (5, 43538004), (6, 36281670), (9, 24187780), (10, 21769002), (12, 18140835), (15, 14512668), (18, 12093890), (20, 10884501), (30, 7256334), (36, 6046945), (45, 4837556), (60, 3628167), (90, 2418778), (180, 1209389), (379, 574380), (758, 287190), (1137, 191460), (1516, 143595), (1895, 114876), (2274, 95730), (3191, 68220), (3411, 63820), (3790, 57438), (4548, 47865), (5685, 38292), (6382, 34110), (6822, 31910), (7580, 28719), (9573, 22740), (11370, 19146), (12764, 17055), (13644, 15955)]