20172181528

素因数分解:

$2^3\times {\mathrm{647}}^1\times {\mathrm{977}}^1\times {\mathrm{3989}}^1$

素因数の和:5619

約数の個数: 32

約数和(自身を含む): 37929578400

約数和(自身を除く): 17757396872

約数列:

[1, 2, 4, 8, 647, 977, 1294, 1954, 2588, 3908, 3989, 5176, 7816, 7978, 15956, 31912, 632119, 1264238, 2528476, 2580883, 3897253, 5056952, 5161766, 7794506, 10323532, 15589012, 20647064, 31178024, 2521522691, 5043045382, 10086090764, 20172181528]

約数ペア:

[(1, 20172181528), (2, 10086090764), (4, 5043045382), (8, 2521522691), (647, 31178024), (977, 20647064), (1294, 15589012), (1954, 10323532), (2588, 7794506), (3908, 5161766), (3989, 5056952), (5176, 3897253), (7816, 2580883), (7978, 2528476), (15956, 1264238), (31912, 632119)]