18739460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22853}}^1$

素因数の和:22903

約数の個数: 24

約数和(自身を含む): 40314456

約数和(自身を除く): 21574996

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22853, 45706, 91412, 114265, 228530, 457060, 936973, 1873946, 3747892, 4684865, 9369730, 18739460]

約数ペア:

[(1, 18739460), (2, 9369730), (4, 4684865), (5, 3747892), (10, 1873946), (20, 936973), (41, 457060), (82, 228530), (164, 114265), (205, 91412), (410, 45706), (820, 22853)]