1645243505

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{21491}}^1$

素因数の和:21808

約数の個数: 16

約数和(自身を含む): 2014746048

約数和(自身を除く): 369502543

約数列:

[1, 5, 61, 251, 305, 1255, 15311, 21491, 76555, 107455, 1310951, 5394241, 6554755, 26971205, 329048701, 1645243505]

約数ペア:

[(1, 1645243505), (5, 329048701), (61, 26971205), (251, 6554755), (305, 5394241), (1255, 1310951), (15311, 107455), (21491, 76555)]