644868

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{853}}^1$

素因数の和:873

約数の個数: 48

約数和(自身を含む): 1912960

約数和(自身を除く): 1268092

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 853, 1706, 2559, 3412, 5118, 5971, 7677, 10236, 11942, 15354, 17913, 23031, 23884, 30708, 35826, 46062, 53739, 71652, 92124, 107478, 161217, 214956, 322434, 644868]

約数ペア:

[(1, 644868), (2, 322434), (3, 214956), (4, 161217), (6, 107478), (7, 92124), (9, 71652), (12, 53739), (14, 46062), (18, 35826), (21, 30708), (27, 23884), (28, 23031), (36, 17913), (42, 15354), (54, 11942), (63, 10236), (84, 7677), (108, 5971), (126, 5118), (189, 3412), (252, 2559), (378, 1706), (756, 853)]