217358820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{172507}}^1$

素因数の和:172529

約数の個数: 72

約数和(自身を含む): 753514944

約数和(自身を除く): 536156124

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 172507, 345014, 517521, 690028, 862535, 1035042, 1207549, 1552563, 1725070, 2070084, 2415098, 2587605, 3105126, 3450140, 3622647, 4830196, 5175210, 6037745, 6210252, 7245294, 7762815, 10350420, 10867941, 12075490, 14490588, 15525630, 18113235, 21735882, 24150980, 31051260, 36226470, 43471764, 54339705, 72452940, 108679410, 217358820]

約数ペア:

[(1, 217358820), (2, 108679410), (3, 72452940), (4, 54339705), (5, 43471764), (6, 36226470), (7, 31051260), (9, 24150980), (10, 21735882), (12, 18113235), (14, 15525630), (15, 14490588), (18, 12075490), (20, 10867941), (21, 10350420), (28, 7762815), (30, 7245294), (35, 6210252), (36, 6037745), (42, 5175210), (45, 4830196), (60, 3622647), (63, 3450140), (70, 3105126), (84, 2587605), (90, 2415098), (105, 2070084), (126, 1725070), (140, 1552563), (180, 1207549), (210, 1035042), (252, 862535), (315, 690028), (420, 517521), (630, 345014), (1260, 172507)]