2640031.00000000

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3847}}^1$

素因数の和:3933

約数の個数: 48

約数和(自身を含む): 104727168

約数和(自身を除く): 61025248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 3847, 5680, 7694, 11360, 15388, 19235, 30776, 38470, 61552, 76940, 123104, 153880, 273137, 307760, 546274, 615520, 1092548, 1365685, 2185096, 2731370, 4370192, 5462740, 8740384, 10925480, 21850960, 43701920]

約数ペア:

[(1, 43701920), (2, 21850960), (4, 10925480), (5, 8740384), (8, 5462740), (10, 4370192), (16, 2731370), (20, 2185096), (32, 1365685), (40, 1092548), (71, 615520), (80, 546274), (142, 307760), (160, 273137), (284, 153880), (355, 123104), (568, 76940), (710, 61552), (1136, 38470), (1420, 30776), (2272, 19235), (2840, 15388), (3847, 11360), (5680, 7694)]