1681802500

素因数分解:

$2^2\times 5^4\times 7^2\times {\mathrm{13729}}^1$

素因数の和:13767

約数の個数: 90

約数和(自身を含む): 4278528870

約数和(自身を除く): 2596726370

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 350, 490, 500, 625, 700, 875, 980, 1225, 1250, 1750, 2450, 2500, 3500, 4375, 4900, 6125, 8750, 12250, 13729, 17500, 24500, 27458, 30625, 54916, 61250, 68645, 96103, 122500, 137290, 192206, 274580, 343225, 384412, 480515, 672721, 686450, 961030, 1345442, 1372900, 1716125, 1922060, 2402575, 2690884, 3363605, 3432250, 4805150, 6727210, 6864500, 8580625, 9610300, 12012875, 13454420, 16818025, 17161250, 24025750, 33636050, 34322500, 48051500, 60064375, 67272100, 84090125, 120128750, 168180250, 240257500, 336360500, 420450625, 840901250, 1681802500]

約数ペア:

[(1, 1681802500), (2, 840901250), (4, 420450625), (5, 336360500), (7, 240257500), (10, 168180250), (14, 120128750), (20, 84090125), (25, 67272100), (28, 60064375), (35, 48051500), (49, 34322500), (50, 33636050), (70, 24025750), (98, 17161250), (100, 16818025), (125, 13454420), (140, 12012875), (175, 9610300), (196, 8580625), (245, 6864500), (250, 6727210), (350, 4805150), (490, 3432250), (500, 3363605), (625, 2690884), (700, 2402575), (875, 1922060), (980, 1716125), (1225, 1372900), (1250, 1345442), (1750, 961030), (2450, 686450), (2500, 672721), (3500, 480515), (4375, 384412), (4900, 343225), (6125, 274580), (8750, 192206), (12250, 137290), (13729, 122500), (17500, 96103), (24500, 68645), (27458, 61250), (30625, 54916)]