128827520

素因数分解:

$2^7\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1993}}^1$

素因数の和:2113

約数の個数: 64

約数和(自身を含む): 311183640

約数和(自身を除く): 182356120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 320, 404, 505, 640, 808, 1010, 1616, 1993, 2020, 3232, 3986, 4040, 6464, 7972, 8080, 9965, 12928, 15944, 16160, 19930, 31888, 32320, 39860, 63776, 64640, 79720, 127552, 159440, 201293, 255104, 318880, 402586, 637760, 805172, 1006465, 1275520, 1610344, 2012930, 3220688, 4025860, 6441376, 8051720, 12882752, 16103440, 25765504, 32206880, 64413760, 128827520]

約数ペア:

[(1, 128827520), (2, 64413760), (4, 32206880), (5, 25765504), (8, 16103440), (10, 12882752), (16, 8051720), (20, 6441376), (32, 4025860), (40, 3220688), (64, 2012930), (80, 1610344), (101, 1275520), (128, 1006465), (160, 805172), (202, 637760), (320, 402586), (404, 318880), (505, 255104), (640, 201293), (808, 159440), (1010, 127552), (1616, 79720), (1993, 64640), (2020, 63776), (3232, 39860), (3986, 32320), (4040, 31888), (6464, 19930), (7972, 16160), (8080, 15944), (9965, 12928)]