203960140

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{68443}}^1$

素因数の和:68601

約数の個数: 24

約数和(自身を含む): 431197200

約数和(自身を除く): 227237060

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 68443, 136886, 273772, 342215, 684430, 1368860, 10198007, 20396014, 40792028, 50990035, 101980070, 203960140]

約数ペア:

[(1, 203960140), (2, 101980070), (4, 50990035), (5, 40792028), (10, 20396014), (20, 10198007), (149, 1368860), (298, 684430), (596, 342215), (745, 273772), (1490, 136886), (2980, 68443)]