2121940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^2$

素因数の和:184

約数の個数: 36

約数和(自身を含む): 4778676

約数和(自身を除く): 2656736

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 158, 170, 316, 340, 395, 790, 1343, 1580, 2686, 5372, 6241, 6715, 12482, 13430, 24964, 26860, 31205, 62410, 106097, 124820, 212194, 424388, 530485, 1060970, 2121940]

約数ペア:

[(1, 2121940), (2, 1060970), (4, 530485), (5, 424388), (10, 212194), (17, 124820), (20, 106097), (34, 62410), (68, 31205), (79, 26860), (85, 24964), (158, 13430), (170, 12482), (316, 6715), (340, 6241), (395, 5372), (790, 2686), (1343, 1580)]