281229260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{56929}}^1$

素因数の和:56970

約数の個数: 48

約数和(自身を含む): 669496800

約数和(自身を除く): 388267540

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 56929, 113858, 227716, 284645, 569290, 740077, 1081651, 1138580, 1480154, 2163302, 2960308, 3700385, 4326604, 5408255, 7400770, 10816510, 14061463, 14801540, 21633020, 28122926, 56245852, 70307315, 140614630, 281229260]

約数ペア:

[(1, 281229260), (2, 140614630), (4, 70307315), (5, 56245852), (10, 28122926), (13, 21633020), (19, 14801540), (20, 14061463), (26, 10816510), (38, 7400770), (52, 5408255), (65, 4326604), (76, 3700385), (95, 2960308), (130, 2163302), (190, 1480154), (247, 1138580), (260, 1081651), (380, 740077), (494, 569290), (988, 284645), (1235, 227716), (2470, 113858), (4940, 56929)]