17612980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11437}}^1$

素因数の和:11464

約数の個数: 48

約数和(自身を含む): 46118016

約数和(自身を除く): 28505036

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, 11437, 22874, 45748, 57185, 80059, 114370, 125807, 160118, 228740, 251614, 320236, 400295, 503228, 629035, 800590, 880649, 1258070, 1601180, 1761298, 2516140, 3522596, 4403245, 8806490, 17612980]

約数ペア:

[(1, 17612980), (2, 8806490), (4, 4403245), (5, 3522596), (7, 2516140), (10, 1761298), (11, 1601180), (14, 1258070), (20, 880649), (22, 800590), (28, 629035), (35, 503228), (44, 400295), (55, 320236), (70, 251614), (77, 228740), (110, 160118), (140, 125807), (154, 114370), (220, 80059), (308, 57185), (385, 45748), (770, 22874), (1540, 11437)]