28249990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{91129}}^1$

素因数の和:91167

約数の個数: 16

約数和(自身を含む): 52490880

約数和(自身を除く): 24240890

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 91129, 182258, 455645, 911290, 2824999, 5649998, 14124995, 28249990]

約数ペア:

[(1, 28249990), (2, 14124995), (5, 5649998), (10, 2824999), (31, 911290), (62, 455645), (155, 182258), (310, 91129)]