80444980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52237}}^1$

素因数の和:52264

約数の個数: 48

約数和(自身を含む): 210623616

約数和(自身を除く): 130178636

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 52237, 104474, 208948, 261185, 365659, 522370, 574607, 731318, 1044740, 1149214, 1462636, 1828295, 2298428, 2873035, 3656590, 4022249, 5746070, 7313180, 8044498, 11492140, 16088996, 20111245, 40222490, 80444980]

約数ペア:

[(1, 80444980), (2, 40222490), (4, 20111245), (5, 16088996), (7, 11492140), (10, 8044498), (11, 7313180), (14, 5746070), (20, 4022249), (22, 3656590), (28, 2873035), (35, 2298428), (44, 1828295), (55, 1462636), (70, 1149214), (77, 1044740), (110, 731318), (140, 574607), (154, 522370), (220, 365659), (308, 261185), (385, 208948), (770, 104474), (1540, 52237)]