66723280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{64157}}^1$

素因数の和:64183

約数の個数: 40

約数和(自身を含む): 167067432

約数和(自身を除く): 100344152

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 64157, 128314, 256628, 320785, 513256, 641570, 834041, 1026512, 1283140, 1668082, 2566280, 3336164, 4170205, 5132560, 6672328, 8340410, 13344656, 16680820, 33361640, 66723280]

約数ペア:

[(1, 66723280), (2, 33361640), (4, 16680820), (5, 13344656), (8, 8340410), (10, 6672328), (13, 5132560), (16, 4170205), (20, 3336164), (26, 2566280), (40, 1668082), (52, 1283140), (65, 1026512), (80, 834041), (104, 641570), (130, 513256), (208, 320785), (260, 256628), (520, 128314), (1040, 64157)]