638499568

素因数分解:

$2^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{38261}}^1$

素因数の和:38425

約数の個数: 40

約数和(自身を含む): 1423346400

約数和(自身を除く): 784846832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 149, 298, 596, 1043, 1192, 2086, 2384, 4172, 8344, 16688, 38261, 76522, 153044, 267827, 306088, 535654, 612176, 1071308, 2142616, 4285232, 5700889, 11401778, 22803556, 39906223, 45607112, 79812446, 91214224, 159624892, 319249784, 638499568]

約数ペア:

[(1, 638499568), (2, 319249784), (4, 159624892), (7, 91214224), (8, 79812446), (14, 45607112), (16, 39906223), (28, 22803556), (56, 11401778), (112, 5700889), (149, 4285232), (298, 2142616), (596, 1071308), (1043, 612176), (1192, 535654), (2086, 306088), (2384, 267827), (4172, 153044), (8344, 76522), (16688, 38261)]