31007480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:169

約数の個数: 128

約数和(自身を含む): 85034880

約数和(自身を除く): 54027400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 41, 56, 70, 73, 74, 82, 140, 146, 148, 164, 185, 205, 259, 280, 287, 292, 296, 328, 365, 370, 410, 511, 518, 574, 584, 730, 740, 820, 1022, 1036, 1148, 1295, 1435, 1460, 1480, 1517, 1640, 2044, 2072, 2296, 2555, 2590, 2701, 2870, 2920, 2993, 3034, 4088, 5110, 5180, 5402, 5740, 5986, 6068, 7585, 10220, 10360, 10619, 10804, 11480, 11972, 12136, 13505, 14965, 15170, 18907, 20440, 20951, 21238, 21608, 23944, 27010, 29930, 30340, 37814, 41902, 42476, 53095, 54020, 59860, 60680, 75628, 83804, 84952, 94535, 104755, 106190, 108040, 110741, 119720, 151256, 167608, 189070, 209510, 212380, 221482, 378140, 419020, 424760, 442964, 553705, 756280, 775187, 838040, 885928, 1107410, 1550374, 2214820, 3100748, 3875935, 4429640, 6201496, 7751870, 15503740, 31007480]

約数ペア:

[(1, 31007480), (2, 15503740), (4, 7751870), (5, 6201496), (7, 4429640), (8, 3875935), (10, 3100748), (14, 2214820), (20, 1550374), (28, 1107410), (35, 885928), (37, 838040), (40, 775187), (41, 756280), (56, 553705), (70, 442964), (73, 424760), (74, 419020), (82, 378140), (140, 221482), (146, 212380), (148, 209510), (164, 189070), (185, 167608), (205, 151256), (259, 119720), (280, 110741), (287, 108040), (292, 106190), (296, 104755), (328, 94535), (365, 84952), (370, 83804), (410, 75628), (511, 60680), (518, 59860), (574, 54020), (584, 53095), (730, 42476), (740, 41902), (820, 37814), (1022, 30340), (1036, 29930), (1148, 27010), (1295, 23944), (1435, 21608), (1460, 21238), (1480, 20951), (1517, 20440), (1640, 18907), (2044, 15170), (2072, 14965), (2296, 13505), (2555, 12136), (2590, 11972), (2701, 11480), (2870, 10804), (2920, 10619), (2993, 10360), (3034, 10220), (4088, 7585), (5110, 6068), (5180, 5986), (5402, 5740)]