26880440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{313}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 64432800

約数和(自身を除く): 37552360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 113, 152, 190, 226, 313, 380, 452, 565, 626, 760, 904, 1130, 1252, 1565, 2147, 2260, 2504, 3130, 4294, 4520, 5947, 6260, 8588, 10735, 11894, 12520, 17176, 21470, 23788, 29735, 35369, 42940, 47576, 59470, 70738, 85880, 118940, 141476, 176845, 237880, 282952, 353690, 672011, 707380, 1344022, 1414760, 2688044, 3360055, 5376088, 6720110, 13440220, 26880440]

約数ペア:

[(1, 26880440), (2, 13440220), (4, 6720110), (5, 5376088), (8, 3360055), (10, 2688044), (19, 1414760), (20, 1344022), (38, 707380), (40, 672011), (76, 353690), (95, 282952), (113, 237880), (152, 176845), (190, 141476), (226, 118940), (313, 85880), (380, 70738), (452, 59470), (565, 47576), (626, 42940), (760, 35369), (904, 29735), (1130, 23788), (1252, 21470), (1565, 17176), (2147, 12520), (2260, 11894), (2504, 10735), (3130, 8588), (4294, 6260), (4520, 5947)]