81282700

素因数分解:

$2^2\times 5^2\times {\mathrm{401}}^1\times {\mathrm{2027}}^1$

素因数の和:2442

約数の個数: 36

約数和(自身を含む): 176910552

約数和(自身を除く): 95627852

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 401, 802, 1604, 2005, 2027, 4010, 4054, 8020, 8108, 10025, 10135, 20050, 20270, 40100, 40540, 50675, 101350, 202700, 812827, 1625654, 3251308, 4064135, 8128270, 16256540, 20320675, 40641350, 81282700]

約数ペア:

[(1, 81282700), (2, 40641350), (4, 20320675), (5, 16256540), (10, 8128270), (20, 4064135), (25, 3251308), (50, 1625654), (100, 812827), (401, 202700), (802, 101350), (1604, 50675), (2005, 40540), (2027, 40100), (4010, 20270), (4054, 20050), (8020, 10135), (8108, 10025)]