65290000

素因数分解:

$2^4\times 5^4\times {\mathrm{6529}}^1$

素因数の和:6557

約数の個数: 50

約数和(自身を含む): 158097830

約数和(自身を除く): 92807830

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, 6529, 10000, 13058, 26116, 32645, 52232, 65290, 104464, 130580, 163225, 261160, 326450, 522320, 652900, 816125, 1305800, 1632250, 2611600, 3264500, 4080625, 6529000, 8161250, 13058000, 16322500, 32645000, 65290000]

約数ペア:

[(1, 65290000), (2, 32645000), (4, 16322500), (5, 13058000), (8, 8161250), (10, 6529000), (16, 4080625), (20, 3264500), (25, 2611600), (40, 1632250), (50, 1305800), (80, 816125), (100, 652900), (125, 522320), (200, 326450), (250, 261160), (400, 163225), (500, 130580), (625, 104464), (1000, 65290), (1250, 52232), (2000, 32645), (2500, 26116), (5000, 13058), (6529, 10000)]