208742779

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1439}}^1$

素因数の和:1539

約数の個数: 32

約数和(自身を含む): 268738560

約数和(自身を除く): 59995781

約数列:

[1, 7, 17, 23, 53, 119, 161, 371, 391, 901, 1219, 1439, 2737, 6307, 8533, 10073, 20723, 24463, 33097, 76267, 145061, 171241, 231679, 533869, 562649, 1296539, 1754141, 3938543, 9075773, 12278987, 29820397, 208742779]

約数ペア:

[(1, 208742779), (7, 29820397), (17, 12278987), (23, 9075773), (53, 3938543), (119, 1754141), (161, 1296539), (371, 562649), (391, 533869), (901, 231679), (1219, 171241), (1439, 145061), (2737, 76267), (6307, 33097), (8533, 24463), (10073, 20723)]