721857142

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{839}}^1$

素因数の和:1068

約数の個数: 32

約数和(自身を含む): 1127831040

約数和(自身を除く): 405973898

約数列:

[1, 2, 71, 73, 83, 142, 146, 166, 839, 1678, 5183, 5893, 6059, 10366, 11786, 12118, 59569, 61247, 69637, 119138, 122494, 139274, 430189, 860378, 4348537, 4944227, 5083501, 8697074, 9888454, 10167002, 360928571, 721857142]

約数ペア:

[(1, 721857142), (2, 360928571), (71, 10167002), (73, 9888454), (83, 8697074), (142, 5083501), (146, 4944227), (166, 4348537), (839, 860378), (1678, 430189), (5183, 139274), (5893, 122494), (6059, 119138), (10366, 69637), (11786, 61247), (12118, 59569)]