20439730

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49853}}^1$

素因数の和:49901

約数の個数: 16

約数和(自身を含む): 37689624

約数和(自身を除く): 17249894

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 49853, 99706, 249265, 498530, 2043973, 4087946, 10219865, 20439730]

約数ペア:

[(1, 20439730), (2, 10219865), (5, 4087946), (10, 2043973), (41, 498530), (82, 249265), (205, 99706), (410, 49853)]