200720440

素因数分解:

$2^3\times 5^1\times {\mathrm{569}}^1\times {\mathrm{8819}}^1$

素因数の和:9399

約数の個数: 32

約数和(自身を含む): 452466000

約数和(自身を除く): 251745560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 569, 1138, 2276, 2845, 4552, 5690, 8819, 11380, 17638, 22760, 35276, 44095, 70552, 88190, 176380, 352760, 5018011, 10036022, 20072044, 25090055, 40144088, 50180110, 100360220, 200720440]

約数ペア:

[(1, 200720440), (2, 100360220), (4, 50180110), (5, 40144088), (8, 25090055), (10, 20072044), (20, 10036022), (40, 5018011), (569, 352760), (1138, 176380), (2276, 88190), (2845, 70552), (4552, 44095), (5690, 35276), (8819, 22760), (11380, 17638)]