13401520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 34560288

約数和(自身を除く): 21158768

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 97, 110, 157, 176, 194, 220, 314, 388, 440, 485, 628, 776, 785, 880, 970, 1067, 1256, 1552, 1570, 1727, 1940, 2134, 2512, 3140, 3454, 3880, 4268, 5335, 6280, 6908, 7760, 8536, 8635, 10670, 12560, 13816, 15229, 17072, 17270, 21340, 27632, 30458, 34540, 42680, 60916, 69080, 76145, 85360, 121832, 138160, 152290, 167519, 243664, 304580, 335038, 609160, 670076, 837595, 1218320, 1340152, 1675190, 2680304, 3350380, 6700760, 13401520]

約数ペア:

[(1, 13401520), (2, 6700760), (4, 3350380), (5, 2680304), (8, 1675190), (10, 1340152), (11, 1218320), (16, 837595), (20, 670076), (22, 609160), (40, 335038), (44, 304580), (55, 243664), (80, 167519), (88, 152290), (97, 138160), (110, 121832), (157, 85360), (176, 76145), (194, 69080), (220, 60916), (314, 42680), (388, 34540), (440, 30458), (485, 27632), (628, 21340), (776, 17270), (785, 17072), (880, 15229), (970, 13816), (1067, 12560), (1256, 10670), (1552, 8635), (1570, 8536), (1727, 7760), (1940, 6908), (2134, 6280), (2512, 5335), (3140, 4268), (3454, 3880)]