20178807782

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1223}}^1\times {\mathrm{40639}}^1$

素因数の和:41900

約数の個数: 32

約数和(自身を含む): 35815219200

約数和(自身を除く): 15636411418

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 1223, 2446, 8561, 17122, 35467, 40639, 70934, 81278, 248269, 284473, 496538, 568946, 1178531, 2357062, 8249717, 16499434, 49701497, 99402994, 347910479, 695820958, 1441343413, 2882686826, 10089403891, 20178807782]

約数ペア:

[(1, 20178807782), (2, 10089403891), (7, 2882686826), (14, 1441343413), (29, 695820958), (58, 347910479), (203, 99402994), (406, 49701497), (1223, 16499434), (2446, 8249717), (8561, 2357062), (17122, 1178531), (35467, 568946), (40639, 496538), (70934, 284473), (81278, 248269)]