40512262

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 71869248

約数和(自身を除く): 31356986

約数列:

[1, 2, 7, 14, 37, 74, 197, 259, 394, 397, 518, 794, 1379, 2758, 2779, 5558, 7289, 14578, 14689, 29378, 51023, 78209, 102046, 102823, 156418, 205646, 547463, 1094926, 2893733, 5787466, 20256131, 40512262]

約数ペア:

[(1, 40512262), (2, 20256131), (7, 5787466), (14, 2893733), (37, 1094926), (74, 547463), (197, 205646), (259, 156418), (394, 102823), (397, 102046), (518, 78209), (794, 51023), (1379, 29378), (2758, 14689), (2779, 14578), (5558, 7289)]