989504080

素因数分解:

$2^4\times 5^1\times {\mathrm{809}}^1\times {\mathrm{15289}}^1$

素因数の和:16111

約数の個数: 40

約数和(自身を含む): 2303591400

約数和(自身を除く): 1314087320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809, 1618, 3236, 4045, 6472, 8090, 12944, 15289, 16180, 30578, 32360, 61156, 64720, 76445, 122312, 152890, 244624, 305780, 611560, 1223120, 12368801, 24737602, 49475204, 61844005, 98950408, 123688010, 197900816, 247376020, 494752040, 989504080]

約数ペア:

[(1, 989504080), (2, 494752040), (4, 247376020), (5, 197900816), (8, 123688010), (10, 98950408), (16, 61844005), (20, 49475204), (40, 24737602), (80, 12368801), (809, 1223120), (1618, 611560), (3236, 305780), (4045, 244624), (6472, 152890), (8090, 122312), (12944, 76445), (15289, 64720), (16180, 61156), (30578, 32360)]