19853440

素因数分解:

$2^7\times 5^1\times {\mathrm{67}}^1\times {\mathrm{463}}^1$

素因数の和:549

約数の個数: 64

約数和(自身を含む): 48274560

約数和(自身を除く): 28421120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 268, 320, 335, 463, 536, 640, 670, 926, 1072, 1340, 1852, 2144, 2315, 2680, 3704, 4288, 4630, 5360, 7408, 8576, 9260, 10720, 14816, 18520, 21440, 29632, 31021, 37040, 42880, 59264, 62042, 74080, 124084, 148160, 155105, 248168, 296320, 310210, 496336, 620420, 992672, 1240840, 1985344, 2481680, 3970688, 4963360, 9926720, 19853440]

約数ペア:

[(1, 19853440), (2, 9926720), (4, 4963360), (5, 3970688), (8, 2481680), (10, 1985344), (16, 1240840), (20, 992672), (32, 620420), (40, 496336), (64, 310210), (67, 296320), (80, 248168), (128, 155105), (134, 148160), (160, 124084), (268, 74080), (320, 62042), (335, 59264), (463, 42880), (536, 37040), (640, 31021), (670, 29632), (926, 21440), (1072, 18520), (1340, 14816), (1852, 10720), (2144, 9260), (2315, 8576), (2680, 7408), (3704, 5360), (4288, 4630)]