31688320

素因数分解:

$2^7\times 5^1\times {\mathrm{67}}^1\times {\mathrm{739}}^1$

素因数の和:825

約数の個数: 64

約数和(自身を含む): 76989600

約数和(自身を除く): 45301280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 268, 320, 335, 536, 640, 670, 739, 1072, 1340, 1478, 2144, 2680, 2956, 3695, 4288, 5360, 5912, 7390, 8576, 10720, 11824, 14780, 21440, 23648, 29560, 42880, 47296, 49513, 59120, 94592, 99026, 118240, 198052, 236480, 247565, 396104, 472960, 495130, 792208, 990260, 1584416, 1980520, 3168832, 3961040, 6337664, 7922080, 15844160, 31688320]

約数ペア:

[(1, 31688320), (2, 15844160), (4, 7922080), (5, 6337664), (8, 3961040), (10, 3168832), (16, 1980520), (20, 1584416), (32, 990260), (40, 792208), (64, 495130), (67, 472960), (80, 396104), (128, 247565), (134, 236480), (160, 198052), (268, 118240), (320, 99026), (335, 94592), (536, 59120), (640, 49513), (670, 47296), (739, 42880), (1072, 29560), (1340, 23648), (1478, 21440), (2144, 14780), (2680, 11824), (2956, 10720), (3695, 8576), (4288, 7390), (5360, 5912)]