78868720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140837}}^1$

素因数の和:140857

約数の個数: 40

約数和(自身を含む): 209566944

約数和(自身を除く): 130698224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140837, 281674, 563348, 704185, 985859, 1126696, 1408370, 1971718, 2253392, 2816740, 3943436, 4929295, 5633480, 7886872, 9858590, 11266960, 15773744, 19717180, 39434360, 78868720]

約数ペア:

[(1, 78868720), (2, 39434360), (4, 19717180), (5, 15773744), (7, 11266960), (8, 9858590), (10, 7886872), (14, 5633480), (16, 4929295), (20, 3943436), (28, 2816740), (35, 2253392), (40, 1971718), (56, 1408370), (70, 1126696), (80, 985859), (112, 704185), (140, 563348), (280, 281674), (560, 140837)]