129648100

素因数分解:

$2^2\times 5^2\times {\mathrm{1296481}}^1$

素因数の和:1296495

約数の個数: 18

約数和(自身を含む): 281336594

約数和(自身を除く): 151688494

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1296481, 2592962, 5185924, 6482405, 12964810, 25929620, 32412025, 64824050, 129648100]

約数ペア:

[(1, 129648100), (2, 64824050), (4, 32412025), (5, 25929620), (10, 12964810), (20, 6482405), (25, 5185924), (50, 2592962), (100, 1296481)]