254388540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{605687}}^1$

素因数の和:605706

約数の個数: 48

約数和(自身を含む): 814044672

約数和(自身を除く): 559656132

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 605687, 1211374, 1817061, 2422748, 3028435, 3634122, 4239809, 6056870, 7268244, 8479618, 9085305, 12113740, 12719427, 16959236, 18170610, 21199045, 25438854, 36341220, 42398090, 50877708, 63597135, 84796180, 127194270, 254388540]

約数ペア:

[(1, 254388540), (2, 127194270), (3, 84796180), (4, 63597135), (5, 50877708), (6, 42398090), (7, 36341220), (10, 25438854), (12, 21199045), (14, 18170610), (15, 16959236), (20, 12719427), (21, 12113740), (28, 9085305), (30, 8479618), (35, 7268244), (42, 6056870), (60, 4239809), (70, 3634122), (84, 3028435), (105, 2422748), (140, 1817061), (210, 1211374), (420, 605687)]