210004919980

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1109}}^1\times {\mathrm{14771}}^1$

素因数の和:16530

約数の個数: 48

約数和(自身を含む): 442126550880

約数和(自身を除く): 232121630900

約数列:

[1, 2, 4, 5, 10, 20, 641, 1109, 1282, 2218, 2564, 3205, 4436, 5545, 6410, 11090, 12820, 14771, 22180, 29542, 59084, 73855, 147710, 295420, 710869, 1421738, 2843476, 3554345, 7108690, 9468211, 14217380, 16381039, 18936422, 32762078, 37872844, 47341055, 65524156, 81905195, 94682110, 163810390, 189364220, 327620780, 10500245999, 21000491998, 42000983996, 52501229995, 105002459990, 210004919980]

約数ペア:

[(1, 210004919980), (2, 105002459990), (4, 52501229995), (5, 42000983996), (10, 21000491998), (20, 10500245999), (641, 327620780), (1109, 189364220), (1282, 163810390), (2218, 94682110), (2564, 81905195), (3205, 65524156), (4436, 47341055), (5545, 37872844), (6410, 32762078), (11090, 18936422), (12820, 16381039), (14771, 14217380), (22180, 9468211), (29542, 7108690), (59084, 3554345), (73855, 2843476), (147710, 1421738), (295420, 710869)]