20910368

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 43110144

約数和(自身を除く): 22199776

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 107, 124, 197, 214, 248, 394, 428, 496, 788, 856, 992, 1576, 1712, 3152, 3317, 3424, 6107, 6304, 6634, 12214, 13268, 21079, 24428, 26536, 42158, 48856, 53072, 84316, 97712, 106144, 168632, 195424, 337264, 653449, 674528, 1306898, 2613796, 5227592, 10455184, 20910368]

約数ペア:

[(1, 20910368), (2, 10455184), (4, 5227592), (8, 2613796), (16, 1306898), (31, 674528), (32, 653449), (62, 337264), (107, 195424), (124, 168632), (197, 106144), (214, 97712), (248, 84316), (394, 53072), (428, 48856), (496, 42158), (788, 26536), (856, 24428), (992, 21079), (1576, 13268), (1712, 12214), (3152, 6634), (3317, 6304), (3424, 6107)]