78828840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{218969}}^1$

素因数の和:218986

約数の個数: 48

約数和(自身を含む): 256194900

約数和(自身を除く): 177366060

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 218969, 437938, 656907, 875876, 1094845, 1313814, 1751752, 1970721, 2189690, 2627628, 3284535, 3941442, 4379380, 5255256, 6569070, 7882884, 8758760, 9853605, 13138140, 15765768, 19707210, 26276280, 39414420, 78828840]

約数ペア:

[(1, 78828840), (2, 39414420), (3, 26276280), (4, 19707210), (5, 15765768), (6, 13138140), (8, 9853605), (9, 8758760), (10, 7882884), (12, 6569070), (15, 5255256), (18, 4379380), (20, 3941442), (24, 3284535), (30, 2627628), (36, 2189690), (40, 1970721), (45, 1751752), (60, 1313814), (72, 1094845), (90, 875876), (120, 656907), (180, 437938), (360, 218969)]