790000

素因数分解:

$2^4\times 5^4\times {\mathrm{79}}^1$

素因数の和:107

約数の個数: 50

約数和(自身を含む): 1936880

約数和(自身を除く): 1146880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 125, 158, 200, 250, 316, 395, 400, 500, 625, 632, 790, 1000, 1250, 1264, 1580, 1975, 2000, 2500, 3160, 3950, 5000, 6320, 7900, 9875, 10000, 15800, 19750, 31600, 39500, 49375, 79000, 98750, 158000, 197500, 395000, 790000]

約数ペア:

[(1, 790000), (2, 395000), (4, 197500), (5, 158000), (8, 98750), (10, 79000), (16, 49375), (20, 39500), (25, 31600), (40, 19750), (50, 15800), (79, 10000), (80, 9875), (100, 7900), (125, 6320), (158, 5000), (200, 3950), (250, 3160), (316, 2500), (395, 2000), (400, 1975), (500, 1580), (625, 1264), (632, 1250), (790, 1000)]