79815040

素因数分解:

$2^7\times 5^1\times {\mathrm{311}}^1\times {\mathrm{401}}^1$

素因数の和:731

約数の個数: 64

約数和(自身を含む): 191898720

約数和(自身を除く): 112083680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 311, 320, 401, 622, 640, 802, 1244, 1555, 1604, 2005, 2488, 3110, 3208, 4010, 4976, 6220, 6416, 8020, 9952, 12440, 12832, 16040, 19904, 24880, 25664, 32080, 39808, 49760, 51328, 64160, 99520, 124711, 128320, 199040, 249422, 256640, 498844, 623555, 997688, 1247110, 1995376, 2494220, 3990752, 4988440, 7981504, 9976880, 15963008, 19953760, 39907520, 79815040]

約数ペア:

[(1, 79815040), (2, 39907520), (4, 19953760), (5, 15963008), (8, 9976880), (10, 7981504), (16, 4988440), (20, 3990752), (32, 2494220), (40, 1995376), (64, 1247110), (80, 997688), (128, 623555), (160, 498844), (311, 256640), (320, 249422), (401, 199040), (622, 128320), (640, 124711), (802, 99520), (1244, 64160), (1555, 51328), (1604, 49760), (2005, 39808), (2488, 32080), (3110, 25664), (3208, 24880), (4010, 19904), (4976, 16040), (6220, 12832), (6416, 12440), (8020, 9952)]