81782900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{28201}}^1$

素因数の和:28244

約数の個数: 36

約数和(自身を含む): 183595020

約数和(自身を除く): 101812120

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 28201, 56402, 112804, 141005, 282010, 564020, 705025, 817829, 1410050, 1635658, 2820100, 3271316, 4089145, 8178290, 16356580, 20445725, 40891450, 81782900]

約数ペア:

[(1, 81782900), (2, 40891450), (4, 20445725), (5, 16356580), (10, 8178290), (20, 4089145), (25, 3271316), (29, 2820100), (50, 1635658), (58, 1410050), (100, 817829), (116, 705025), (145, 564020), (290, 282010), (580, 141005), (725, 112804), (1450, 56402), (2900, 28201)]