20161804925

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{443}}^1\times {\mathrm{619}}^1$

素因数の和:1262

約数の個数: 48

約数和(自身を含む): 26727485760

約数和(自身を除く): 6565680835

約数列:

[1, 5, 17, 25, 85, 173, 425, 443, 619, 865, 2215, 2941, 3095, 4325, 7531, 10523, 11075, 14705, 15475, 37655, 52615, 73525, 76639, 107087, 188275, 263075, 274217, 383195, 535435, 1302863, 1371085, 1820479, 1915975, 2677175, 4661689, 6514315, 6855425, 9102395, 23308445, 32571575, 45511975, 47439541, 116542225, 237197705, 806472197, 1185988525, 4032360985, 20161804925]

約数ペア:

[(1, 20161804925), (5, 4032360985), (17, 1185988525), (25, 806472197), (85, 237197705), (173, 116542225), (425, 47439541), (443, 45511975), (619, 32571575), (865, 23308445), (2215, 9102395), (2941, 6855425), (3095, 6514315), (4325, 4661689), (7531, 2677175), (10523, 1915975), (11075, 1820479), (14705, 1371085), (15475, 1302863), (37655, 535435), (52615, 383195), (73525, 274217), (76639, 263075), (107087, 188275)]