31490920

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{6199}}^1$

素因数の和:6337

約数の個数: 32

約数和(自身を含む): 71424000

約数和(自身を除く): 39933080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 6199, 12398, 24796, 30995, 49592, 61990, 123980, 247960, 787273, 1574546, 3149092, 3936365, 6298184, 7872730, 15745460, 31490920]

約数ペア:

[(1, 31490920), (2, 15745460), (4, 7872730), (5, 6298184), (8, 3936365), (10, 3149092), (20, 1574546), (40, 787273), (127, 247960), (254, 123980), (508, 61990), (635, 49592), (1016, 30995), (1270, 24796), (2540, 12398), (5080, 6199)]