18106520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19681}}^1$

素因数の和:19715

約数の個数: 32

約数和(自身を含む): 42513120

約数和(自身を除く): 24406600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 19681, 39362, 78724, 98405, 157448, 196810, 393620, 452663, 787240, 905326, 1810652, 2263315, 3621304, 4526630, 9053260, 18106520]

約数ペア:

[(1, 18106520), (2, 9053260), (4, 4526630), (5, 3621304), (8, 2263315), (10, 1810652), (20, 905326), (23, 787240), (40, 452663), (46, 393620), (92, 196810), (115, 157448), (184, 98405), (230, 78724), (460, 39362), (920, 19681)]