220770920

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{673}}^1$

素因数の和:882

約数の個数: 64

約数和(自身を含む): 509544000

約数和(自身を除く): 288773080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 139, 236, 278, 295, 472, 556, 590, 673, 695, 1112, 1180, 1346, 1390, 2360, 2692, 2780, 3365, 5384, 5560, 6730, 8201, 13460, 16402, 26920, 32804, 39707, 41005, 65608, 79414, 82010, 93547, 158828, 164020, 187094, 198535, 317656, 328040, 374188, 397070, 467735, 748376, 794140, 935470, 1588280, 1870940, 3741880, 5519273, 11038546, 22077092, 27596365, 44154184, 55192730, 110385460, 220770920]

約数ペア:

[(1, 220770920), (2, 110385460), (4, 55192730), (5, 44154184), (8, 27596365), (10, 22077092), (20, 11038546), (40, 5519273), (59, 3741880), (118, 1870940), (139, 1588280), (236, 935470), (278, 794140), (295, 748376), (472, 467735), (556, 397070), (590, 374188), (673, 328040), (695, 317656), (1112, 198535), (1180, 187094), (1346, 164020), (1390, 158828), (2360, 93547), (2692, 82010), (2780, 79414), (3365, 65608), (5384, 41005), (5560, 39707), (6730, 32804), (8201, 26920), (13460, 16402)]