661864

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 1451520

約数和(自身を除く): 789656

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 223, 371, 424, 446, 742, 892, 1484, 1561, 1784, 2968, 3122, 6244, 11819, 12488, 23638, 47276, 82733, 94552, 165466, 330932, 661864]

約数ペア:

[(1, 661864), (2, 330932), (4, 165466), (7, 94552), (8, 82733), (14, 47276), (28, 23638), (53, 12488), (56, 11819), (106, 6244), (212, 3122), (223, 2968), (371, 1784), (424, 1561), (446, 1484), (742, 892)]