201221744

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{405689}}^1$

素因数の和:405728

約数の個数: 20

約数和(自身を含む): 402444480

約数和(自身を除く): 201222736

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 405689, 811378, 1622756, 3245512, 6491024, 12576359, 25152718, 50305436, 100610872, 201221744]

約数ペア:

[(1, 201221744), (2, 100610872), (4, 50305436), (8, 25152718), (16, 12576359), (31, 6491024), (62, 3245512), (124, 1622756), (248, 811378), (496, 405689)]