1278156680

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{100801}}^1$

素因数の和:101129

約数の個数: 32

約数和(自身を含む): 2884953240

約数和(自身を除く): 1606796560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 6340, 12680, 100801, 201602, 403204, 504005, 806408, 1008010, 2016020, 4032040, 31953917, 63907834, 127815668, 159769585, 255631336, 319539170, 639078340, 1278156680]

約数ペア:

[(1, 1278156680), (2, 639078340), (4, 319539170), (5, 255631336), (8, 159769585), (10, 127815668), (20, 63907834), (40, 31953917), (317, 4032040), (634, 2016020), (1268, 1008010), (1585, 806408), (2536, 504005), (3170, 403204), (6340, 201602), (12680, 100801)]