52457440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{6691}}^1$

素因数の和:6720

約数の個数: 72

約数和(自身を含む): 144185832

約数和(自身を除く): 91728392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 6691, 7840, 13382, 26764, 33455, 46837, 53528, 66910, 93674, 107056, 133820, 187348, 214112, 234185, 267640, 327859, 374696, 468370, 535280, 655718, 749392, 936740, 1070560, 1311436, 1498784, 1639295, 1873480, 2622872, 3278590, 3746960, 5245744, 6557180, 7493920, 10491488, 13114360, 26228720, 52457440]

約数ペア:

[(1, 52457440), (2, 26228720), (4, 13114360), (5, 10491488), (7, 7493920), (8, 6557180), (10, 5245744), (14, 3746960), (16, 3278590), (20, 2622872), (28, 1873480), (32, 1639295), (35, 1498784), (40, 1311436), (49, 1070560), (56, 936740), (70, 749392), (80, 655718), (98, 535280), (112, 468370), (140, 374696), (160, 327859), (196, 267640), (224, 234185), (245, 214112), (280, 187348), (392, 133820), (490, 107056), (560, 93674), (784, 66910), (980, 53528), (1120, 46837), (1568, 33455), (1960, 26764), (3920, 13382), (6691, 7840)]