28748258

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 29312542

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 77, 79, 119, 139, 154, 158, 187, 238, 278, 374, 553, 869, 973, 1106, 1309, 1343, 1529, 1738, 1946, 2363, 2618, 2686, 3058, 4726, 6083, 9401, 10703, 10981, 12166, 14773, 16541, 18802, 21406, 21962, 25993, 29546, 33082, 51986, 76867, 103411, 120791, 153734, 181951, 186677, 206822, 241582, 363902, 373354, 845537, 1306739, 1691074, 2053447, 2613478, 4106894, 14374129, 28748258]

約数ペア:

[(1, 28748258), (2, 14374129), (7, 4106894), (11, 2613478), (14, 2053447), (17, 1691074), (22, 1306739), (34, 845537), (77, 373354), (79, 363902), (119, 241582), (139, 206822), (154, 186677), (158, 181951), (187, 153734), (238, 120791), (278, 103411), (374, 76867), (553, 51986), (869, 33082), (973, 29546), (1106, 25993), (1309, 21962), (1343, 21406), (1529, 18802), (1738, 16541), (1946, 14773), (2363, 12166), (2618, 10981), (2686, 10703), (3058, 9401), (4726, 6083)]