3905950000

素因数分解:

$2^4\times 5^5\times {\mathrm{191}}^1\times {\mathrm{409}}^1$

素因数の和:633

約数の個数: 120

約数和(自身を含む): 9531889920

約数和(自身を除く): 5625939920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 191, 200, 250, 382, 400, 409, 500, 625, 764, 818, 955, 1000, 1250, 1528, 1636, 1910, 2000, 2045, 2500, 3056, 3125, 3272, 3820, 4090, 4775, 5000, 6250, 6544, 7640, 8180, 9550, 10000, 10225, 12500, 15280, 16360, 19100, 20450, 23875, 25000, 32720, 38200, 40900, 47750, 50000, 51125, 76400, 78119, 81800, 95500, 102250, 119375, 156238, 163600, 191000, 204500, 238750, 255625, 312476, 382000, 390595, 409000, 477500, 511250, 596875, 624952, 781190, 818000, 955000, 1022500, 1193750, 1249904, 1278125, 1562380, 1910000, 1952975, 2045000, 2387500, 2556250, 3124760, 3905950, 4090000, 4775000, 5112500, 6249520, 7811900, 9550000, 9764875, 10225000, 15623800, 19529750, 20450000, 31247600, 39059500, 48824375, 78119000, 97648750, 156238000, 195297500, 244121875, 390595000, 488243750, 781190000, 976487500, 1952975000, 3905950000]

約数ペア:

[(1, 3905950000), (2, 1952975000), (4, 976487500), (5, 781190000), (8, 488243750), (10, 390595000), (16, 244121875), (20, 195297500), (25, 156238000), (40, 97648750), (50, 78119000), (80, 48824375), (100, 39059500), (125, 31247600), (191, 20450000), (200, 19529750), (250, 15623800), (382, 10225000), (400, 9764875), (409, 9550000), (500, 7811900), (625, 6249520), (764, 5112500), (818, 4775000), (955, 4090000), (1000, 3905950), (1250, 3124760), (1528, 2556250), (1636, 2387500), (1910, 2045000), (2000, 1952975), (2045, 1910000), (2500, 1562380), (3056, 1278125), (3125, 1249904), (3272, 1193750), (3820, 1022500), (4090, 955000), (4775, 818000), (5000, 781190), (6250, 624952), (6544, 596875), (7640, 511250), (8180, 477500), (9550, 409000), (10000, 390595), (10225, 382000), (12500, 312476), (15280, 255625), (16360, 238750), (19100, 204500), (20450, 191000), (23875, 163600), (25000, 156238), (32720, 119375), (38200, 102250), (40900, 95500), (47750, 81800), (50000, 78119), (51125, 76400)]