28967560

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2087}}^1$

素因数の和:2445

約数の個数: 32

約数和(自身を含む): 65396160

約数和(自身を除く): 36428600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1735, 2087, 2776, 3470, 4174, 6940, 8348, 10435, 13880, 16696, 20870, 41740, 83480, 724189, 1448378, 2896756, 3620945, 5793512, 7241890, 14483780, 28967560]

約数ペア:

[(1, 28967560), (2, 14483780), (4, 7241890), (5, 5793512), (8, 3620945), (10, 2896756), (20, 1448378), (40, 724189), (347, 83480), (694, 41740), (1388, 20870), (1735, 16696), (2087, 13880), (2776, 10435), (3470, 8348), (4174, 6940)]