17971120

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5479}}^1$

素因数の和:5533

約数の個数: 40

約数和(自身を含む): 42809760

約数和(自身を除く): 24838640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5479, 10958, 21916, 27395, 43832, 54790, 87664, 109580, 219160, 224639, 438320, 449278, 898556, 1123195, 1797112, 2246390, 3594224, 4492780, 8985560, 17971120]

約数ペア:

[(1, 17971120), (2, 8985560), (4, 4492780), (5, 3594224), (8, 2246390), (10, 1797112), (16, 1123195), (20, 898556), (40, 449278), (41, 438320), (80, 224639), (82, 219160), (164, 109580), (205, 87664), (328, 54790), (410, 43832), (656, 27395), (820, 21916), (1640, 10958), (3280, 5479)]