666427244

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{739}}^1$

素因数の和:907

約数の個数: 72

約数和(自身を含む): 1403075520

約数和(自身を除く): 736648276

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 107, 172, 196, 214, 301, 428, 602, 739, 749, 1204, 1478, 1498, 2107, 2956, 2996, 4214, 4601, 5173, 5243, 8428, 9202, 10346, 10486, 18404, 20692, 20972, 31777, 32207, 36211, 63554, 64414, 72422, 79073, 127108, 128828, 144844, 158146, 222439, 225449, 316292, 444878, 450898, 553511, 889756, 901796, 1107022, 1557073, 2214044, 3114146, 3400139, 3874577, 6228292, 6800278, 7749154, 13600556, 15498308, 23800973, 47601946, 95203892, 166606811, 333213622, 666427244]

約数ペア:

[(1, 666427244), (2, 333213622), (4, 166606811), (7, 95203892), (14, 47601946), (28, 23800973), (43, 15498308), (49, 13600556), (86, 7749154), (98, 6800278), (107, 6228292), (172, 3874577), (196, 3400139), (214, 3114146), (301, 2214044), (428, 1557073), (602, 1107022), (739, 901796), (749, 889756), (1204, 553511), (1478, 450898), (1498, 444878), (2107, 316292), (2956, 225449), (2996, 222439), (4214, 158146), (4601, 144844), (5173, 128828), (5243, 127108), (8428, 79073), (9202, 72422), (10346, 64414), (10486, 63554), (18404, 36211), (20692, 32207), (20972, 31777)]