31142840

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{5683}}^1$

素因数の和:5831

約数の個数: 32

約数和(自身を含む): 70595280

約数和(自身を除く): 39452440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 5683, 11366, 22732, 28415, 45464, 56830, 113660, 227320, 778571, 1557142, 3114284, 3892855, 6228568, 7785710, 15571420, 31142840]

約数ペア:

[(1, 31142840), (2, 15571420), (4, 7785710), (5, 6228568), (8, 3892855), (10, 3114284), (20, 1557142), (40, 778571), (137, 227320), (274, 113660), (548, 56830), (685, 45464), (1096, 28415), (1370, 22732), (2740, 11366), (5480, 5683)]