18312688

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:745

約数の個数: 40

約数和(自身を含む): 37363680

約数和(自身を除く): 19050992

約数列:

[1, 2, 4, 8, 16, 29, 58, 61, 116, 122, 232, 244, 464, 488, 647, 976, 1294, 1769, 2588, 3538, 5176, 7076, 10352, 14152, 18763, 28304, 37526, 39467, 75052, 78934, 150104, 157868, 300208, 315736, 631472, 1144543, 2289086, 4578172, 9156344, 18312688]

約数ペア:

[(1, 18312688), (2, 9156344), (4, 4578172), (8, 2289086), (16, 1144543), (29, 631472), (58, 315736), (61, 300208), (116, 157868), (122, 150104), (232, 78934), (244, 75052), (464, 39467), (488, 37526), (647, 28304), (976, 18763), (1294, 14152), (1769, 10352), (2588, 7076), (3538, 5176)]