8949220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 21732480

約数和(自身を除く): 12783260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 659, 679, 970, 1318, 1358, 1940, 2636, 2716, 3295, 3395, 4613, 6590, 6790, 9226, 13180, 13580, 18452, 23065, 46130, 63923, 92260, 127846, 255692, 319615, 447461, 639230, 894922, 1278460, 1789844, 2237305, 4474610, 8949220]

約数ペア:

[(1, 8949220), (2, 4474610), (4, 2237305), (5, 1789844), (7, 1278460), (10, 894922), (14, 639230), (20, 447461), (28, 319615), (35, 255692), (70, 127846), (97, 92260), (140, 63923), (194, 46130), (388, 23065), (485, 18452), (659, 13580), (679, 13180), (970, 9226), (1318, 6790), (1358, 6590), (1940, 4613), (2636, 3395), (2716, 3295)]