28403320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64553}}^1$

素因数の和:64575

約数の個数: 32

約数和(自身を含む): 69718320

約数和(自身を除く): 41315000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64553, 129106, 258212, 322765, 516424, 645530, 710083, 1291060, 1420166, 2582120, 2840332, 3550415, 5680664, 7100830, 14201660, 28403320]

約数ペア:

[(1, 28403320), (2, 14201660), (4, 7100830), (5, 5680664), (8, 3550415), (10, 2840332), (11, 2582120), (20, 1420166), (22, 1291060), (40, 710083), (44, 645530), (55, 516424), (88, 322765), (110, 258212), (220, 129106), (440, 64553)]