200321320

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{16103}}^1$

素因数の和:16425

約数の個数: 32

約数和(自身を含む): 452200320

約数和(自身を除く): 251879000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 12440, 16103, 32206, 64412, 80515, 128824, 161030, 322060, 644120, 5008033, 10016066, 20032132, 25040165, 40064264, 50080330, 100160660, 200321320]

約数ペア:

[(1, 200321320), (2, 100160660), (4, 50080330), (5, 40064264), (8, 25040165), (10, 20032132), (20, 10016066), (40, 5008033), (311, 644120), (622, 322060), (1244, 161030), (1555, 128824), (2488, 80515), (3110, 64412), (6220, 32206), (12440, 16103)]