647965892

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{11383}}^1$

素因数の和:11520

約数の個数: 48

約数和(自身を含む): 1377008640

約数和(自身を除く): 729042748

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 107, 133, 214, 266, 428, 532, 749, 1498, 2033, 2996, 4066, 8132, 11383, 14231, 22766, 28462, 45532, 56924, 79681, 159362, 216277, 318724, 432554, 865108, 1217981, 1513939, 2435962, 3027878, 4871924, 6055756, 8525867, 17051734, 23141639, 34103468, 46283278, 92566556, 161991473, 323982946, 647965892]

約数ペア:

[(1, 647965892), (2, 323982946), (4, 161991473), (7, 92566556), (14, 46283278), (19, 34103468), (28, 23141639), (38, 17051734), (76, 8525867), (107, 6055756), (133, 4871924), (214, 3027878), (266, 2435962), (428, 1513939), (532, 1217981), (749, 865108), (1498, 432554), (2033, 318724), (2996, 216277), (4066, 159362), (8132, 79681), (11383, 56924), (14231, 45532), (22766, 28462)]