217336140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{172489}}^1$

素因数の和:172511

約数の個数: 72

約数和(自身を含む): 753436320

約数和(自身を除く): 536100180

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, 172489, 344978, 517467, 689956, 862445, 1034934, 1207423, 1552401, 1724890, 2069868, 2414846, 2587335, 3104802, 3449780, 3622269, 4829692, 5174670, 6037115, 6209604, 7244538, 7762005, 10349340, 10866807, 12074230, 14489076, 15524010, 18111345, 21733614, 24148460, 31048020, 36222690, 43467228, 54334035, 72445380, 108668070, 217336140]

約数ペア:

[(1, 217336140), (2, 108668070), (3, 72445380), (4, 54334035), (5, 43467228), (6, 36222690), (7, 31048020), (9, 24148460), (10, 21733614), (12, 18111345), (14, 15524010), (15, 14489076), (18, 12074230), (20, 10866807), (21, 10349340), (28, 7762005), (30, 7244538), (35, 6209604), (36, 6037115), (42, 5174670), (45, 4829692), (60, 3622269), (63, 3449780), (70, 3104802), (84, 2587335), (90, 2414846), (105, 2069868), (126, 1724890), (140, 1552401), (180, 1207423), (210, 1034934), (252, 862445), (315, 689956), (420, 517467), (630, 344978), (1260, 172489)]