20177528120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1187}}^1\times {\mathrm{9883}}^1$

素因数の和:11124

約数の個数: 64

約数和(自身を含む): 46499080320

約数和(自身を除く): 26321552200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1187, 1720, 2374, 4748, 5935, 9496, 9883, 11870, 19766, 23740, 39532, 47480, 49415, 51041, 79064, 98830, 102082, 197660, 204164, 255205, 395320, 408328, 424969, 510410, 849938, 1020820, 1699876, 2041640, 2124845, 3399752, 4249690, 8499380, 11731121, 16998760, 23462242, 46924484, 58655605, 93848968, 117311210, 234622420, 469244840, 504438203, 1008876406, 2017752812, 2522191015, 4035505624, 5044382030, 10088764060, 20177528120]

約数ペア:

[(1, 20177528120), (2, 10088764060), (4, 5044382030), (5, 4035505624), (8, 2522191015), (10, 2017752812), (20, 1008876406), (40, 504438203), (43, 469244840), (86, 234622420), (172, 117311210), (215, 93848968), (344, 58655605), (430, 46924484), (860, 23462242), (1187, 16998760), (1720, 11731121), (2374, 8499380), (4748, 4249690), (5935, 3399752), (9496, 2124845), (9883, 2041640), (11870, 1699876), (19766, 1020820), (23740, 849938), (39532, 510410), (47480, 424969), (49415, 408328), (51041, 395320), (79064, 255205), (98830, 204164), (102082, 197660)]