19790810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6619}}^1$

素因数の和:6662

約数の個数: 32

約数和(自身を含む): 40037760

約数和(自身を除く): 20246950

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 6619, 13238, 33095, 66190, 86047, 152237, 172094, 304474, 430235, 761185, 860470, 1522370, 1979081, 3958162, 9895405, 19790810]

約数ペア:

[(1, 19790810), (2, 9895405), (5, 3958162), (10, 1979081), (13, 1522370), (23, 860470), (26, 761185), (46, 430235), (65, 304474), (115, 172094), (130, 152237), (230, 86047), (299, 66190), (598, 33095), (1495, 13238), (2990, 6619)]