40405990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1\times {\mathrm{503}}^1$

素因数の和:816

約数の個数: 32

約数和(自身を含む): 75660480

約数和(自身を除く): 35254490

約数列:

[1, 2, 5, 10, 29, 58, 145, 277, 290, 503, 554, 1006, 1385, 2515, 2770, 5030, 8033, 14587, 16066, 29174, 40165, 72935, 80330, 139331, 145870, 278662, 696655, 1393310, 4040599, 8081198, 20202995, 40405990]

約数ペア:

[(1, 40405990), (2, 20202995), (5, 8081198), (10, 4040599), (29, 1393310), (58, 696655), (145, 278662), (277, 145870), (290, 139331), (503, 80330), (554, 72935), (1006, 40165), (1385, 29174), (2515, 16066), (2770, 14587), (5030, 8033)]