890992048

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{359}}^1\times {\mathrm{857}}^1$

素因数の和:1405

約数の個数: 40

約数和(自身を含む): 1742700960

約数和(自身を除く): 851708912

約数列:

[1, 2, 4, 8, 16, 181, 359, 362, 718, 724, 857, 1436, 1448, 1714, 2872, 2896, 3428, 5744, 6856, 13712, 64979, 129958, 155117, 259916, 307663, 310234, 519832, 615326, 620468, 1039664, 1230652, 1240936, 2461304, 2481872, 4922608, 55687003, 111374006, 222748012, 445496024, 890992048]

約数ペア:

[(1, 890992048), (2, 445496024), (4, 222748012), (8, 111374006), (16, 55687003), (181, 4922608), (359, 2481872), (362, 2461304), (718, 1240936), (724, 1230652), (857, 1039664), (1436, 620468), (1448, 615326), (1714, 519832), (2872, 310234), (2896, 307663), (3428, 259916), (5744, 155117), (6856, 129958), (13712, 64979)]