64990400

素因数分解:

$2^6\times 5^2\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:442

約数の個数: 84

約数和(自身を含む): 161574480

約数和(自身を除く): 96584080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 151, 160, 200, 269, 302, 320, 400, 538, 604, 755, 800, 1076, 1208, 1345, 1510, 1600, 2152, 2416, 2690, 3020, 3775, 4304, 4832, 5380, 6040, 6725, 7550, 8608, 9664, 10760, 12080, 13450, 15100, 17216, 21520, 24160, 26900, 30200, 40619, 43040, 48320, 53800, 60400, 81238, 86080, 107600, 120800, 162476, 203095, 215200, 241600, 324952, 406190, 430400, 649904, 812380, 1015475, 1299808, 1624760, 2030950, 2599616, 3249520, 4061900, 6499040, 8123800, 12998080, 16247600, 32495200, 64990400]

約数ペア:

[(1, 64990400), (2, 32495200), (4, 16247600), (5, 12998080), (8, 8123800), (10, 6499040), (16, 4061900), (20, 3249520), (25, 2599616), (32, 2030950), (40, 1624760), (50, 1299808), (64, 1015475), (80, 812380), (100, 649904), (151, 430400), (160, 406190), (200, 324952), (269, 241600), (302, 215200), (320, 203095), (400, 162476), (538, 120800), (604, 107600), (755, 86080), (800, 81238), (1076, 60400), (1208, 53800), (1345, 48320), (1510, 43040), (1600, 40619), (2152, 30200), (2416, 26900), (2690, 24160), (3020, 21520), (3775, 17216), (4304, 15100), (4832, 13450), (5380, 12080), (6040, 10760), (6725, 9664), (7550, 8608)]