31276390

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{22501}}^1$

素因数の和:22647

約数の個数: 16

約数和(自身を含む): 56705040

約数和(自身を除く): 25428650

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 22501, 45002, 112505, 225010, 3127639, 6255278, 15638195, 31276390]

約数ペア:

[(1, 31276390), (2, 15638195), (5, 6255278), (10, 3127639), (139, 225010), (278, 112505), (695, 45002), (1390, 22501)]