290365640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{196193}}^1$

素因数の和:196241

約数の個数: 32

約数和(自身を含む): 670983480

約数和(自身を除く): 380617840

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 196193, 392386, 784772, 980965, 1569544, 1961930, 3923860, 7259141, 7847720, 14518282, 29036564, 36295705, 58073128, 72591410, 145182820, 290365640]

約数ペア:

[(1, 290365640), (2, 145182820), (4, 72591410), (5, 58073128), (8, 36295705), (10, 29036564), (20, 14518282), (37, 7847720), (40, 7259141), (74, 3923860), (148, 1961930), (185, 1569544), (296, 980965), (370, 784772), (740, 392386), (1480, 196193)]