86587880

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{4139}}^1$

素因数の和:4673

約数の個数: 32

約数和(自身を含む): 195242400

約数和(自身を除く): 108654520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 4139, 4184, 5230, 8278, 10460, 16556, 20695, 20920, 33112, 41390, 82780, 165560, 2164697, 4329394, 8658788, 10823485, 17317576, 21646970, 43293940, 86587880]

約数ペア:

[(1, 86587880), (2, 43293940), (4, 21646970), (5, 17317576), (8, 10823485), (10, 8658788), (20, 4329394), (40, 2164697), (523, 165560), (1046, 82780), (2092, 41390), (2615, 33112), (4139, 20920), (4184, 20695), (5230, 16556), (8278, 10460)]