208464172

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 441529088

約数和(自身を除く): 233064916

約数列:

[1, 2, 4, 7, 14, 28, 41, 43, 82, 86, 103, 164, 172, 206, 287, 301, 412, 574, 602, 721, 1148, 1204, 1442, 1681, 1763, 2884, 3362, 3526, 4223, 4429, 6724, 7052, 8446, 8858, 11767, 12341, 16892, 17716, 23534, 24682, 29561, 31003, 47068, 49364, 59122, 62006, 72283, 118244, 124012, 144566, 173143, 181589, 289132, 346286, 363178, 505981, 692572, 726356, 1011962, 1212001, 1271123, 2023924, 2424002, 2542246, 4848004, 5084492, 7445149, 14890298, 29780596, 52116043, 104232086, 208464172]

約数ペア:

[(1, 208464172), (2, 104232086), (4, 52116043), (7, 29780596), (14, 14890298), (28, 7445149), (41, 5084492), (43, 4848004), (82, 2542246), (86, 2424002), (103, 2023924), (164, 1271123), (172, 1212001), (206, 1011962), (287, 726356), (301, 692572), (412, 505981), (574, 363178), (602, 346286), (721, 289132), (1148, 181589), (1204, 173143), (1442, 144566), (1681, 124012), (1763, 118244), (2884, 72283), (3362, 62006), (3526, 59122), (4223, 49364), (4429, 47068), (6724, 31003), (7052, 29561), (8446, 24682), (8858, 23534), (11767, 17716), (12341, 16892)]