206906920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{470243}}^1$

素因数の和:470265

約数の個数: 32

約数和(自身を含む): 507863520

約数和(自身を除く): 300956600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 470243, 940486, 1880972, 2351215, 3761944, 4702430, 5172673, 9404860, 10345346, 18809720, 20690692, 25863365, 41381384, 51726730, 103453460, 206906920]

約数ペア:

[(1, 206906920), (2, 103453460), (4, 51726730), (5, 41381384), (8, 25863365), (10, 20690692), (11, 18809720), (20, 10345346), (22, 9404860), (40, 5172673), (44, 4702430), (55, 3761944), (88, 2351215), (110, 1880972), (220, 940486), (440, 470243)]