64897520

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5167}}^1$

素因数の和:5337

約数の個数: 40

約数和(自身を含む): 151877184

約数和(自身を除く): 86979664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 5167, 6280, 10334, 12560, 20668, 25835, 41336, 51670, 82672, 103340, 206680, 413360, 811219, 1622438, 3244876, 4056095, 6489752, 8112190, 12979504, 16224380, 32448760, 64897520]

約数ペア:

[(1, 64897520), (2, 32448760), (4, 16224380), (5, 12979504), (8, 8112190), (10, 6489752), (16, 4056095), (20, 3244876), (40, 1622438), (80, 811219), (157, 413360), (314, 206680), (628, 103340), (785, 82672), (1256, 51670), (1570, 41336), (2512, 25835), (3140, 20668), (5167, 12560), (6280, 10334)]