20502670

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 38071296

約数和(自身を除く): 17568626

約数列:

[1, 2, 5, 10, 67, 71, 134, 142, 335, 355, 431, 670, 710, 862, 2155, 4310, 4757, 9514, 23785, 28877, 30601, 47570, 57754, 61202, 144385, 153005, 288770, 306010, 2050267, 4100534, 10251335, 20502670]

約数ペア:

[(1, 20502670), (2, 10251335), (5, 4100534), (10, 2050267), (67, 306010), (71, 288770), (134, 153005), (142, 144385), (335, 61202), (355, 57754), (431, 47570), (670, 30601), (710, 28877), (862, 23785), (2155, 9514), (4310, 4757)]