87356140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{140897}}^1$

素因数の和:140937

約数の個数: 24

約数和(自身を含む): 189366912

約数和(自身を除く): 102010772

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 140897, 281794, 563588, 704485, 1408970, 2817940, 4367807, 8735614, 17471228, 21839035, 43678070, 87356140]

約数ペア:

[(1, 87356140), (2, 43678070), (4, 21839035), (5, 17471228), (10, 8735614), (20, 4367807), (31, 2817940), (62, 1408970), (124, 704485), (155, 563588), (310, 281794), (620, 140897)]