205461800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^2\times {\mathrm{1069}}^1$

素因数の和:1147

約数の個数: 72

約数和(自身を含む): 494067150

約数和(自身を除く): 288605350

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 961, 1069, 1240, 1550, 1922, 2138, 3100, 3844, 4276, 4805, 5345, 6200, 7688, 8552, 9610, 10690, 19220, 21380, 24025, 26725, 33139, 38440, 42760, 48050, 53450, 66278, 96100, 106900, 132556, 165695, 192200, 213800, 265112, 331390, 662780, 828475, 1027309, 1325560, 1656950, 2054618, 3313900, 4109236, 5136545, 6627800, 8218472, 10273090, 20546180, 25682725, 41092360, 51365450, 102730900, 205461800]

約数ペア:

[(1, 205461800), (2, 102730900), (4, 51365450), (5, 41092360), (8, 25682725), (10, 20546180), (20, 10273090), (25, 8218472), (31, 6627800), (40, 5136545), (50, 4109236), (62, 3313900), (100, 2054618), (124, 1656950), (155, 1325560), (200, 1027309), (248, 828475), (310, 662780), (620, 331390), (775, 265112), (961, 213800), (1069, 192200), (1240, 165695), (1550, 132556), (1922, 106900), (2138, 96100), (3100, 66278), (3844, 53450), (4276, 48050), (4805, 42760), (5345, 38440), (6200, 33139), (7688, 26725), (8552, 24025), (9610, 21380), (10690, 19220)]