401553280

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8837}}^1$

素因数の和:8927

約数の個数: 64

約数和(自身を含む): 973594080

約数和(自身を除く): 572040800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 640, 710, 1136, 1420, 2272, 2840, 4544, 5680, 8837, 9088, 11360, 17674, 22720, 35348, 44185, 45440, 70696, 88370, 141392, 176740, 282784, 353480, 565568, 627427, 706960, 1131136, 1254854, 1413920, 2509708, 2827840, 3137135, 5019416, 5655680, 6274270, 10038832, 12548540, 20077664, 25097080, 40155328, 50194160, 80310656, 100388320, 200776640, 401553280]

約数ペア:

[(1, 401553280), (2, 200776640), (4, 100388320), (5, 80310656), (8, 50194160), (10, 40155328), (16, 25097080), (20, 20077664), (32, 12548540), (40, 10038832), (64, 6274270), (71, 5655680), (80, 5019416), (128, 3137135), (142, 2827840), (160, 2509708), (284, 1413920), (320, 1254854), (355, 1131136), (568, 706960), (640, 627427), (710, 565568), (1136, 353480), (1420, 282784), (2272, 176740), (2840, 141392), (4544, 88370), (5680, 70696), (8837, 45440), (9088, 44185), (11360, 35348), (17674, 22720)]