56678945

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 72990720

約数和(自身を除く): 16311775

約数列:

[1, 5, 43, 47, 71, 79, 215, 235, 355, 395, 2021, 3053, 3337, 3397, 3713, 5609, 10105, 15265, 16685, 16985, 18565, 28045, 143491, 159659, 241187, 263623, 717455, 798295, 1205935, 1318115, 11335789, 56678945]

約数ペア:

[(1, 56678945), (5, 11335789), (43, 1318115), (47, 1205935), (71, 798295), (79, 717455), (215, 263623), (235, 241187), (355, 159659), (395, 143491), (2021, 28045), (3053, 18565), (3337, 16985), (3397, 16685), (3713, 15265), (5609, 10105)]