680011556

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1\times {\mathrm{659}}^1$

素因数の和:1076

約数の個数: 48

約数和(自身を含む): 1377129600

約数和(自身を除く): 697118044

約数列:

[1, 2, 4, 7, 14, 28, 137, 269, 274, 538, 548, 659, 959, 1076, 1318, 1883, 1918, 2636, 3766, 3836, 4613, 7532, 9226, 18452, 36853, 73706, 90283, 147412, 177271, 180566, 257971, 354542, 361132, 515942, 631981, 709084, 1031884, 1240897, 1263962, 2481794, 2527924, 4963588, 24286127, 48572254, 97144508, 170002889, 340005778, 680011556]

約数ペア:

[(1, 680011556), (2, 340005778), (4, 170002889), (7, 97144508), (14, 48572254), (28, 24286127), (137, 4963588), (269, 2527924), (274, 2481794), (538, 1263962), (548, 1240897), (659, 1031884), (959, 709084), (1076, 631981), (1318, 515942), (1883, 361132), (1918, 354542), (2636, 257971), (3766, 180566), (3836, 177271), (4613, 147412), (7532, 90283), (9226, 73706), (18452, 36853)]