128977850

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{31079}}^1$

素因数の和:31174

約数の個数: 24

約数和(自身を含む): 242796960

約数和(自身を除く): 113819110

約数列:

[1, 2, 5, 10, 25, 50, 83, 166, 415, 830, 2075, 4150, 31079, 62158, 155395, 310790, 776975, 1553950, 2579557, 5159114, 12897785, 25795570, 64488925, 128977850]

約数ペア:

[(1, 128977850), (2, 64488925), (5, 25795570), (10, 12897785), (25, 5159114), (50, 2579557), (83, 1553950), (166, 776975), (415, 310790), (830, 155395), (2075, 62158), (4150, 31079)]