420020750

素因数分解:

$2^1\times 5^3\times {\mathrm{127}}^1\times {\mathrm{13229}}^1$

素因数の和:13373

約数の個数: 32

約数和(自身を含む): 792529920

約数和(自身を除く): 372509170

約数列:

[1, 2, 5, 10, 25, 50, 125, 127, 250, 254, 635, 1270, 3175, 6350, 13229, 15875, 26458, 31750, 66145, 132290, 330725, 661450, 1653625, 1680083, 3307250, 3360166, 8400415, 16800830, 42002075, 84004150, 210010375, 420020750]

約数ペア:

[(1, 420020750), (2, 210010375), (5, 84004150), (10, 42002075), (25, 16800830), (50, 8400415), (125, 3360166), (127, 3307250), (250, 1680083), (254, 1653625), (635, 661450), (1270, 330725), (3175, 132290), (6350, 66145), (13229, 31750), (15875, 26458)]