318245120

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2281}}^1$

素因数の和:2411

約数の個数: 72

約数和(自身を含む): 769627320

約数和(自身を除く): 451382200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 545, 640, 872, 1090, 1280, 1744, 2180, 2281, 3488, 4360, 4562, 6976, 8720, 9124, 11405, 13952, 17440, 18248, 22810, 27904, 34880, 36496, 45620, 69760, 72992, 91240, 139520, 145984, 182480, 248629, 291968, 364960, 497258, 583936, 729920, 994516, 1243145, 1459840, 1989032, 2486290, 2919680, 3978064, 4972580, 7956128, 9945160, 15912256, 19890320, 31824512, 39780640, 63649024, 79561280, 159122560, 318245120]

約数ペア:

[(1, 318245120), (2, 159122560), (4, 79561280), (5, 63649024), (8, 39780640), (10, 31824512), (16, 19890320), (20, 15912256), (32, 9945160), (40, 7956128), (64, 4972580), (80, 3978064), (109, 2919680), (128, 2486290), (160, 1989032), (218, 1459840), (256, 1243145), (320, 994516), (436, 729920), (545, 583936), (640, 497258), (872, 364960), (1090, 291968), (1280, 248629), (1744, 182480), (2180, 145984), (2281, 139520), (3488, 91240), (4360, 72992), (4562, 69760), (6976, 45620), (8720, 36496), (9124, 34880), (11405, 27904), (13952, 22810), (17440, 18248)]