18790576

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 26206544

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 71, 112, 119, 136, 139, 142, 238, 272, 278, 284, 476, 497, 556, 568, 952, 973, 994, 1112, 1136, 1207, 1904, 1946, 1988, 2224, 2363, 2414, 3892, 3976, 4726, 4828, 7784, 7952, 8449, 9452, 9656, 9869, 15568, 16541, 16898, 18904, 19312, 19738, 33082, 33796, 37808, 39476, 66164, 67592, 69083, 78952, 132328, 135184, 138166, 157904, 167773, 264656, 276332, 335546, 552664, 671092, 1105328, 1174411, 1342184, 2348822, 2684368, 4697644, 9395288, 18790576]

約数ペア:

[(1, 18790576), (2, 9395288), (4, 4697644), (7, 2684368), (8, 2348822), (14, 1342184), (16, 1174411), (17, 1105328), (28, 671092), (34, 552664), (56, 335546), (68, 276332), (71, 264656), (112, 167773), (119, 157904), (136, 138166), (139, 135184), (142, 132328), (238, 78952), (272, 69083), (278, 67592), (284, 66164), (476, 39476), (497, 37808), (556, 33796), (568, 33082), (952, 19738), (973, 19312), (994, 18904), (1112, 16898), (1136, 16541), (1207, 15568), (1904, 9869), (1946, 9656), (1988, 9452), (2224, 8449), (2363, 7952), (2414, 7784), (3892, 4828), (3976, 4726)]