20156600

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1039}}^1$

素因数の和:1152

約数の個数: 48

約数和(自身を含む): 47392800

約数和(自身を除く): 27236200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 194, 200, 388, 485, 776, 970, 1039, 1940, 2078, 2425, 3880, 4156, 4850, 5195, 8312, 9700, 10390, 19400, 20780, 25975, 41560, 51950, 100783, 103900, 201566, 207800, 403132, 503915, 806264, 1007830, 2015660, 2519575, 4031320, 5039150, 10078300, 20156600]

約数ペア:

[(1, 20156600), (2, 10078300), (4, 5039150), (5, 4031320), (8, 2519575), (10, 2015660), (20, 1007830), (25, 806264), (40, 503915), (50, 403132), (97, 207800), (100, 201566), (194, 103900), (200, 100783), (388, 51950), (485, 41560), (776, 25975), (970, 20780), (1039, 19400), (1940, 10390), (2078, 9700), (2425, 8312), (3880, 5195), (4156, 4850)]