42640078

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{18427}}^1$

素因数の和:18531

約数の個数: 16

約数和(自身を含む): 69657840

約数和(自身を除く): 27017762

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 18427, 36854, 239551, 479102, 1640003, 3280006, 21320039, 42640078]

約数ペア:

[(1, 42640078), (2, 21320039), (13, 3280006), (26, 1640003), (89, 479102), (178, 239551), (1157, 36854), (2314, 18427)]