80901520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1979}}^1$

素因数の和:2072

約数の個数: 80

約数和(自身を含む): 218021760

約数和(自身を除く): 137120240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 1979, 2044, 2555, 2920, 3958, 4088, 5110, 5840, 7916, 8176, 9895, 10220, 13853, 15832, 19790, 20440, 27706, 31664, 39580, 40880, 55412, 69265, 79160, 110824, 138530, 144467, 158320, 221648, 277060, 288934, 554120, 577868, 722335, 1011269, 1108240, 1155736, 1444670, 2022538, 2311472, 2889340, 4045076, 5056345, 5778680, 8090152, 10112690, 11557360, 16180304, 20225380, 40450760, 80901520]

約数ペア:

[(1, 80901520), (2, 40450760), (4, 20225380), (5, 16180304), (7, 11557360), (8, 10112690), (10, 8090152), (14, 5778680), (16, 5056345), (20, 4045076), (28, 2889340), (35, 2311472), (40, 2022538), (56, 1444670), (70, 1155736), (73, 1108240), (80, 1011269), (112, 722335), (140, 577868), (146, 554120), (280, 288934), (292, 277060), (365, 221648), (511, 158320), (560, 144467), (584, 138530), (730, 110824), (1022, 79160), (1168, 69265), (1460, 55412), (1979, 40880), (2044, 39580), (2555, 31664), (2920, 27706), (3958, 20440), (4088, 19790), (5110, 15832), (5840, 13853), (7916, 10220), (8176, 9895)]