129905720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{463949}}^1$

素因数の和:463967

約数の個数: 32

約数和(自身を含む): 334044000

約数和(自身を除く): 204138280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 463949, 927898, 1855796, 2319745, 3247643, 3711592, 4639490, 6495286, 9278980, 12990572, 16238215, 18557960, 25981144, 32476430, 64952860, 129905720]

約数ペア:

[(1, 129905720), (2, 64952860), (4, 32476430), (5, 25981144), (7, 18557960), (8, 16238215), (10, 12990572), (14, 9278980), (20, 6495286), (28, 4639490), (35, 3711592), (40, 3247643), (56, 2319745), (70, 1855796), (140, 927898), (280, 463949)]