128290000

素因数分解:

$2^4\times 5^4\times {\mathrm{12829}}^1$

素因数の和:12857

約数の個数: 50

約数和(自身を含む): 310627130

約数和(自身を除く): 182337130

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 12829, 25658, 51316, 64145, 102632, 128290, 205264, 256580, 320725, 513160, 641450, 1026320, 1282900, 1603625, 2565800, 3207250, 5131600, 6414500, 8018125, 12829000, 16036250, 25658000, 32072500, 64145000, 128290000]

約数ペア:

[(1, 128290000), (2, 64145000), (4, 32072500), (5, 25658000), (8, 16036250), (10, 12829000), (16, 8018125), (20, 6414500), (25, 5131600), (40, 3207250), (50, 2565800), (80, 1603625), (100, 1282900), (125, 1026320), (200, 641450), (250, 513160), (400, 320725), (500, 256580), (625, 205264), (1000, 128290), (1250, 102632), (2000, 64145), (2500, 51316), (5000, 25658), (10000, 12829)]