164880920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{373}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 382108320

約数和(自身を除く): 217227400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 257, 344, 373, 430, 514, 746, 860, 1028, 1285, 1492, 1720, 1865, 2056, 2570, 2984, 3730, 5140, 7460, 10280, 11051, 14920, 16039, 22102, 32078, 44204, 55255, 64156, 80195, 88408, 95861, 110510, 128312, 160390, 191722, 221020, 320780, 383444, 442040, 479305, 641560, 766888, 958610, 1917220, 3834440, 4122023, 8244046, 16488092, 20610115, 32976184, 41220230, 82440460, 164880920]

約数ペア:

[(1, 164880920), (2, 82440460), (4, 41220230), (5, 32976184), (8, 20610115), (10, 16488092), (20, 8244046), (40, 4122023), (43, 3834440), (86, 1917220), (172, 958610), (215, 766888), (257, 641560), (344, 479305), (373, 442040), (430, 383444), (514, 320780), (746, 221020), (860, 191722), (1028, 160390), (1285, 128312), (1492, 110510), (1720, 95861), (1865, 88408), (2056, 80195), (2570, 64156), (2984, 55255), (3730, 44204), (5140, 32078), (7460, 22102), (10280, 16039), (11051, 14920)]