31940912

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{907}}^1$

素因数の和:1017

約数の個数: 40

約数和(自身を含む): 64852992

約数和(自身を除く): 32912080

約数列:

[1, 2, 4, 8, 16, 31, 62, 71, 124, 142, 248, 284, 496, 568, 907, 1136, 1814, 2201, 3628, 4402, 7256, 8804, 14512, 17608, 28117, 35216, 56234, 64397, 112468, 128794, 224936, 257588, 449872, 515176, 1030352, 1996307, 3992614, 7985228, 15970456, 31940912]

約数ペア:

[(1, 31940912), (2, 15970456), (4, 7985228), (8, 3992614), (16, 1996307), (31, 1030352), (62, 515176), (71, 449872), (124, 257588), (142, 224936), (248, 128794), (284, 112468), (496, 64397), (568, 56234), (907, 35216), (1136, 28117), (1814, 17608), (2201, 14512), (3628, 8804), (4402, 7256)]