72518740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{517991}}^1$

素因数の和:518007

約数の個数: 24

約数和(自身を含む): 174045312

約数和(自身を除く): 101526572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 517991, 1035982, 2071964, 2589955, 3625937, 5179910, 7251874, 10359820, 14503748, 18129685, 36259370, 72518740]

約数ペア:

[(1, 72518740), (2, 36259370), (4, 18129685), (5, 14503748), (7, 10359820), (10, 7251874), (14, 5179910), (20, 3625937), (28, 2589955), (35, 2071964), (70, 1035982), (140, 517991)]