218505590

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{991}}^1\times {\mathrm{1297}}^1$

素因数の和:2312

約数の個数: 32

約数和(自身を含む): 417187584

約数和(自身を除く): 198681994

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 991, 1297, 1982, 2594, 4955, 6485, 9910, 12970, 16847, 22049, 33694, 44098, 84235, 110245, 168470, 220490, 1285327, 2570654, 6426635, 12853270, 21850559, 43701118, 109252795, 218505590]

約数ペア:

[(1, 218505590), (2, 109252795), (5, 43701118), (10, 21850559), (17, 12853270), (34, 6426635), (85, 2570654), (170, 1285327), (991, 220490), (1297, 168470), (1982, 110245), (2594, 84235), (4955, 44098), (6485, 33694), (9910, 22049), (12970, 16847)]