42720328

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 95103360

約数和(自身を除く): 52383032

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 113, 157, 172, 226, 301, 314, 344, 452, 602, 628, 791, 904, 1099, 1204, 1256, 1582, 2198, 2408, 3164, 4396, 4859, 6328, 6751, 8792, 9718, 13502, 17741, 19436, 27004, 34013, 35482, 38872, 47257, 54008, 68026, 70964, 94514, 124187, 136052, 141928, 189028, 248374, 272104, 378056, 496748, 762863, 993496, 1525726, 3051452, 5340041, 6102904, 10680082, 21360164, 42720328]

約数ペア:

[(1, 42720328), (2, 21360164), (4, 10680082), (7, 6102904), (8, 5340041), (14, 3051452), (28, 1525726), (43, 993496), (56, 762863), (86, 496748), (113, 378056), (157, 272104), (172, 248374), (226, 189028), (301, 141928), (314, 136052), (344, 124187), (452, 94514), (602, 70964), (628, 68026), (791, 54008), (904, 47257), (1099, 38872), (1204, 35482), (1256, 34013), (1582, 27004), (2198, 19436), (2408, 17741), (3164, 13502), (4396, 9718), (4859, 8792), (6328, 6751)]