205454640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{856061}}^1$

素因数の和:856077

約数の個数: 40

約数和(自身を含む): 636910128

約数和(自身を除く): 431455488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 856061, 1712122, 2568183, 3424244, 4280305, 5136366, 6848488, 8560610, 10272732, 12840915, 13696976, 17121220, 20545464, 25681830, 34242440, 41090928, 51363660, 68484880, 102727320, 205454640]

約数ペア:

[(1, 205454640), (2, 102727320), (3, 68484880), (4, 51363660), (5, 41090928), (6, 34242440), (8, 25681830), (10, 20545464), (12, 17121220), (15, 13696976), (16, 12840915), (20, 10272732), (24, 8560610), (30, 6848488), (40, 5136366), (48, 4280305), (60, 3424244), (80, 2568183), (120, 1712122), (240, 856061)]