78856225

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 116242560

約数和(自身を除く): 37386335

約数列:

[1, 5, 7, 25, 35, 61, 83, 89, 175, 305, 415, 427, 445, 581, 623, 1525, 2075, 2135, 2225, 2905, 3115, 5063, 5429, 7387, 10675, 14525, 15575, 25315, 27145, 35441, 36935, 38003, 51709, 126575, 135725, 177205, 184675, 190015, 258545, 450607, 886025, 950075, 1292725, 2253035, 3154249, 11265175, 15771245, 78856225]

約数ペア:

[(1, 78856225), (5, 15771245), (7, 11265175), (25, 3154249), (35, 2253035), (61, 1292725), (83, 950075), (89, 886025), (175, 450607), (305, 258545), (415, 190015), (427, 184675), (445, 177205), (581, 135725), (623, 126575), (1525, 51709), (2075, 38003), (2135, 36935), (2225, 35441), (2905, 27145), (3115, 25315), (5063, 15575), (5429, 14525), (7387, 10675)]