17898440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:774

約数の個数: 64

約数和(自身を含む): 46569600

約数和(自身を除く): 28671160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 659, 679, 776, 970, 1318, 1358, 1940, 2636, 2716, 3295, 3395, 3880, 4613, 5272, 5432, 6590, 6790, 9226, 13180, 13580, 18452, 23065, 26360, 27160, 36904, 46130, 63923, 92260, 127846, 184520, 255692, 319615, 447461, 511384, 639230, 894922, 1278460, 1789844, 2237305, 2556920, 3579688, 4474610, 8949220, 17898440]

約数ペア:

[(1, 17898440), (2, 8949220), (4, 4474610), (5, 3579688), (7, 2556920), (8, 2237305), (10, 1789844), (14, 1278460), (20, 894922), (28, 639230), (35, 511384), (40, 447461), (56, 319615), (70, 255692), (97, 184520), (140, 127846), (194, 92260), (280, 63923), (388, 46130), (485, 36904), (659, 27160), (679, 26360), (776, 23065), (970, 18452), (1318, 13580), (1358, 13180), (1940, 9226), (2636, 6790), (2716, 6590), (3295, 5432), (3395, 5272), (3880, 4613)]