28301020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 65263968

約数和(自身を除く): 36962948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 653, 788, 985, 1306, 1970, 2167, 2612, 3265, 3940, 4334, 6530, 7183, 8668, 10835, 13060, 14366, 21670, 28732, 35915, 43340, 71830, 128641, 143660, 257282, 514564, 643205, 1286410, 1415051, 2572820, 2830102, 5660204, 7075255, 14150510, 28301020]

約数ペア:

[(1, 28301020), (2, 14150510), (4, 7075255), (5, 5660204), (10, 2830102), (11, 2572820), (20, 1415051), (22, 1286410), (44, 643205), (55, 514564), (110, 257282), (197, 143660), (220, 128641), (394, 71830), (653, 43340), (788, 35915), (985, 28732), (1306, 21670), (1970, 14366), (2167, 13060), (2612, 10835), (3265, 8668), (3940, 7183), (4334, 6530)]