16985480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10357}}^1$

素因数の和:10409

約数の個数: 32

約数和(自身を含む): 39153240

約数和(自身を除く): 22167760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 10357, 20714, 41428, 51785, 82856, 103570, 207140, 414280, 424637, 849274, 1698548, 2123185, 3397096, 4246370, 8492740, 16985480]

約数ペア:

[(1, 16985480), (2, 8492740), (4, 4246370), (5, 3397096), (8, 2123185), (10, 1698548), (20, 849274), (40, 424637), (41, 414280), (82, 207140), (164, 103570), (205, 82856), (328, 51785), (410, 41428), (820, 20714), (1640, 10357)]