17966720

素因数分解:

$2^7\times 5^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 43696800

約数和(自身を除く): 25730080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 268, 320, 335, 419, 536, 640, 670, 838, 1072, 1340, 1676, 2095, 2144, 2680, 3352, 4190, 4288, 5360, 6704, 8380, 8576, 10720, 13408, 16760, 21440, 26816, 28073, 33520, 42880, 53632, 56146, 67040, 112292, 134080, 140365, 224584, 268160, 280730, 449168, 561460, 898336, 1122920, 1796672, 2245840, 3593344, 4491680, 8983360, 17966720]

約数ペア:

[(1, 17966720), (2, 8983360), (4, 4491680), (5, 3593344), (8, 2245840), (10, 1796672), (16, 1122920), (20, 898336), (32, 561460), (40, 449168), (64, 280730), (67, 268160), (80, 224584), (128, 140365), (134, 134080), (160, 112292), (268, 67040), (320, 56146), (335, 53632), (419, 42880), (536, 33520), (640, 28073), (670, 26816), (838, 21440), (1072, 16760), (1340, 13408), (1676, 10720), (2095, 8576), (2144, 8380), (2680, 6704), (3352, 5360), (4190, 4288)]