18974001820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{25640543}}^1$

素因数の和:25640589

約数の個数: 24

約数和(自身を含む): 40922308224

約数和(自身を除く): 21948306404

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 25640543, 51281086, 102562172, 128202715, 256405430, 512810860, 948700091, 1897400182, 3794800364, 4743500455, 9487000910, 18974001820]

約数ペア:

[(1, 18974001820), (2, 9487000910), (4, 4743500455), (5, 3794800364), (10, 1897400182), (20, 948700091), (37, 512810860), (74, 256405430), (148, 128202715), (185, 102562172), (370, 51281086), (740, 25640543)]