31920028

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{12809}}^1$

素因数の和:12909

約数の個数: 24

約数和(自身を含む): 64562400

約数和(自身を除く): 32642372

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 12809, 25618, 51236, 89663, 179326, 358652, 1140001, 2280002, 4560004, 7980007, 15960014, 31920028]

約数ペア:

[(1, 31920028), (2, 15960014), (4, 7980007), (7, 4560004), (14, 2280002), (28, 1140001), (89, 358652), (178, 179326), (356, 89663), (623, 51236), (1246, 25618), (2492, 12809)]