668912

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{431}}^1$

素因数の和:536

約数の個数: 20

約数和(自身を含む): 1312416

約数和(自身を除く): 643504

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 431, 776, 862, 1552, 1724, 3448, 6896, 41807, 83614, 167228, 334456, 668912]

約数ペア:

[(1, 668912), (2, 334456), (4, 167228), (8, 83614), (16, 41807), (97, 6896), (194, 3448), (388, 1724), (431, 1552), (776, 862)]