81690650

素因数分解:

$2^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{22381}}^1$

素因数の和:22466

約数の個数: 24

約数和(自身を含む): 154032924

約数和(自身を除く): 72342274

約数列:

[1, 2, 5, 10, 25, 50, 73, 146, 365, 730, 1825, 3650, 22381, 44762, 111905, 223810, 559525, 1119050, 1633813, 3267626, 8169065, 16338130, 40845325, 81690650]

約数ペア:

[(1, 81690650), (2, 40845325), (5, 16338130), (10, 8169065), (25, 3267626), (50, 1633813), (73, 1119050), (146, 559525), (365, 223810), (730, 111905), (1825, 44762), (3650, 22381)]