81213800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13099}}^1$

素因数の和:13146

約数の個数: 48

約数和(自身を含む): 194928000

約数和(自身を除く): 113714200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 6200, 13099, 26198, 52396, 65495, 104792, 130990, 261980, 327475, 406069, 523960, 654950, 812138, 1309900, 1624276, 2030345, 2619800, 3248552, 4060690, 8121380, 10151725, 16242760, 20303450, 40606900, 81213800]

約数ペア:

[(1, 81213800), (2, 40606900), (4, 20303450), (5, 16242760), (8, 10151725), (10, 8121380), (20, 4060690), (25, 3248552), (31, 2619800), (40, 2030345), (50, 1624276), (62, 1309900), (100, 812138), (124, 654950), (155, 523960), (200, 406069), (248, 327475), (310, 261980), (620, 130990), (775, 104792), (1240, 65495), (1550, 52396), (3100, 26198), (6200, 13099)]