81528510

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{388231}}^1$

素因数の和:388248

約数の個数: 32

約数和(自身を含む): 223621632

約数和(自身を除く): 142093122

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 388231, 776462, 1164693, 1941155, 2329386, 2717617, 3882310, 5435234, 5823465, 8152851, 11646930, 13588085, 16305702, 27176170, 40764255, 81528510]

約数ペア:

[(1, 81528510), (2, 40764255), (3, 27176170), (5, 16305702), (6, 13588085), (7, 11646930), (10, 8152851), (14, 5823465), (15, 5435234), (21, 3882310), (30, 2717617), (35, 2329386), (42, 1941155), (70, 1164693), (105, 776462), (210, 388231)]