163280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:183

約数の個数: 40

約数和(自身を含む): 411432

約数和(自身を除く): 248152

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 157, 208, 260, 314, 520, 628, 785, 1040, 1256, 1570, 2041, 2512, 3140, 4082, 6280, 8164, 10205, 12560, 16328, 20410, 32656, 40820, 81640, 163280]

約数ペア:

[(1, 163280), (2, 81640), (4, 40820), (5, 32656), (8, 20410), (10, 16328), (13, 12560), (16, 10205), (20, 8164), (26, 6280), (40, 4082), (52, 3140), (65, 2512), (80, 2041), (104, 1570), (130, 1256), (157, 1040), (208, 785), (260, 628), (314, 520)]