81514720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{997}}^1$

素因数の和:1092

約数の個数: 96

約数和(自身を含む): 223328448

約数和(自身を除く): 141813728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 73, 80, 112, 140, 146, 160, 224, 280, 292, 365, 511, 560, 584, 730, 997, 1022, 1120, 1168, 1460, 1994, 2044, 2336, 2555, 2920, 3988, 4088, 4985, 5110, 5840, 6979, 7976, 8176, 9970, 10220, 11680, 13958, 15952, 16352, 19940, 20440, 27916, 31904, 34895, 39880, 40880, 55832, 69790, 72781, 79760, 81760, 111664, 139580, 145562, 159520, 223328, 279160, 291124, 363905, 509467, 558320, 582248, 727810, 1018934, 1116640, 1164496, 1455620, 2037868, 2328992, 2547335, 2911240, 4075736, 5094670, 5822480, 8151472, 10189340, 11644960, 16302944, 20378680, 40757360, 81514720]

約数ペア:

[(1, 81514720), (2, 40757360), (4, 20378680), (5, 16302944), (7, 11644960), (8, 10189340), (10, 8151472), (14, 5822480), (16, 5094670), (20, 4075736), (28, 2911240), (32, 2547335), (35, 2328992), (40, 2037868), (56, 1455620), (70, 1164496), (73, 1116640), (80, 1018934), (112, 727810), (140, 582248), (146, 558320), (160, 509467), (224, 363905), (280, 291124), (292, 279160), (365, 223328), (511, 159520), (560, 145562), (584, 139580), (730, 111664), (997, 81760), (1022, 79760), (1120, 72781), (1168, 69790), (1460, 55832), (1994, 40880), (2044, 39880), (2336, 34895), (2555, 31904), (2920, 27916), (3988, 20440), (4088, 19940), (4985, 16352), (5110, 15952), (5840, 13958), (6979, 11680), (7976, 10220), (8176, 9970)]