311644620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{247337}}^1$

素因数の和:247359

約数の個数: 72

約数和(自身を含む): 1080372384

約数和(自身を除く): 768727764

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, 247337, 494674, 742011, 989348, 1236685, 1484022, 1731359, 2226033, 2473370, 2968044, 3462718, 3710055, 4452066, 4946740, 5194077, 6925436, 7420110, 8656795, 8904132, 10388154, 11130165, 14840220, 15582231, 17313590, 20776308, 22260330, 25970385, 31164462, 34627180, 44520660, 51940770, 62328924, 77911155, 103881540, 155822310, 311644620]

約数ペア:

[(1, 311644620), (2, 155822310), (3, 103881540), (4, 77911155), (5, 62328924), (6, 51940770), (7, 44520660), (9, 34627180), (10, 31164462), (12, 25970385), (14, 22260330), (15, 20776308), (18, 17313590), (20, 15582231), (21, 14840220), (28, 11130165), (30, 10388154), (35, 8904132), (36, 8656795), (42, 7420110), (45, 6925436), (60, 5194077), (63, 4946740), (70, 4452066), (84, 3710055), (90, 3462718), (105, 2968044), (126, 2473370), (140, 2226033), (180, 1731359), (210, 1484022), (252, 1236685), (315, 989348), (420, 742011), (630, 494674), (1260, 247337)]