18716950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1009}}^1$

素因数の和:1081

約数の個数: 48

約数和(自身を含む): 40577760

約数和(自身を除く): 21860810

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 53, 70, 106, 175, 265, 350, 371, 530, 742, 1009, 1325, 1855, 2018, 2650, 3710, 5045, 7063, 9275, 10090, 14126, 18550, 25225, 35315, 50450, 53477, 70630, 106954, 176575, 267385, 353150, 374339, 534770, 748678, 1336925, 1871695, 2673850, 3743390, 9358475, 18716950]

約数ペア:

[(1, 18716950), (2, 9358475), (5, 3743390), (7, 2673850), (10, 1871695), (14, 1336925), (25, 748678), (35, 534770), (50, 374339), (53, 353150), (70, 267385), (106, 176575), (175, 106954), (265, 70630), (350, 53477), (371, 50450), (530, 35315), (742, 25225), (1009, 18550), (1325, 14126), (1855, 10090), (2018, 9275), (2650, 7063), (3710, 5045)]