20829890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2963}}^1$

素因数の和:3026

約数の個数: 32

約数和(自身を含む): 40547520

約数和(自身を除く): 19717630

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 185, 190, 370, 703, 1406, 2963, 3515, 5926, 7030, 14815, 29630, 56297, 109631, 112594, 219262, 281485, 548155, 562970, 1096310, 2082989, 4165978, 10414945, 20829890]

約数ペア:

[(1, 20829890), (2, 10414945), (5, 4165978), (10, 2082989), (19, 1096310), (37, 562970), (38, 548155), (74, 281485), (95, 219262), (185, 112594), (190, 109631), (370, 56297), (703, 29630), (1406, 14815), (2963, 7030), (3515, 5926)]