340990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:124

約数の個数: 32

約数和(自身を含む): 687456

約数和(自身を除く): 346466

約数列:

[1, 2, 5, 10, 13, 26, 43, 61, 65, 86, 122, 130, 215, 305, 430, 559, 610, 793, 1118, 1586, 2623, 2795, 3965, 5246, 5590, 7930, 13115, 26230, 34099, 68198, 170495, 340990]

約数ペア:

[(1, 340990), (2, 170495), (5, 68198), (10, 34099), (13, 26230), (26, 13115), (43, 7930), (61, 5590), (65, 5246), (86, 3965), (122, 2795), (130, 2623), (215, 1586), (305, 1118), (430, 793), (559, 610)]