18796520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20431}}^1$

素因数の和:20465

約数の個数: 32

約数和(自身を含む): 44133120

約数和(自身を除く): 25336600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 20431, 40862, 81724, 102155, 163448, 204310, 408620, 469913, 817240, 939826, 1879652, 2349565, 3759304, 4699130, 9398260, 18796520]

約数ペア:

[(1, 18796520), (2, 9398260), (4, 4699130), (5, 3759304), (8, 2349565), (10, 1879652), (20, 939826), (23, 817240), (40, 469913), (46, 408620), (92, 204310), (115, 163448), (184, 102155), (230, 81724), (460, 40862), (920, 20431)]