643468

素因数分解:

$2^2\times 7^4\times {\mathrm{67}}^1$

素因数の和:99

約数の個数: 30

約数和(自身を含む): 1333276

約数和(自身を除く): 689808

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 98, 134, 196, 268, 343, 469, 686, 938, 1372, 1876, 2401, 3283, 4802, 6566, 9604, 13132, 22981, 45962, 91924, 160867, 321734, 643468]

約数ペア:

[(1, 643468), (2, 321734), (4, 160867), (7, 91924), (14, 45962), (28, 22981), (49, 13132), (67, 9604), (98, 6566), (134, 4802), (196, 3283), (268, 2401), (343, 1876), (469, 1372), (686, 938)]