20865232

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{59}}^1$

素因数の和:152

約数の個数: 60

約数和(自身を含む): 44327520

約数和(自身を除く): 23462288

約数列:

[1, 2, 4, 8, 16, 23, 31, 46, 59, 62, 92, 118, 124, 184, 236, 248, 368, 472, 496, 713, 944, 961, 1357, 1426, 1829, 1922, 2714, 2852, 3658, 3844, 5428, 5704, 7316, 7688, 10856, 11408, 14632, 15376, 21712, 22103, 29264, 42067, 44206, 56699, 84134, 88412, 113398, 168268, 176824, 226796, 336536, 353648, 453592, 673072, 907184, 1304077, 2608154, 5216308, 10432616, 20865232]

約数ペア:

[(1, 20865232), (2, 10432616), (4, 5216308), (8, 2608154), (16, 1304077), (23, 907184), (31, 673072), (46, 453592), (59, 353648), (62, 336536), (92, 226796), (118, 176824), (124, 168268), (184, 113398), (236, 88412), (248, 84134), (368, 56699), (472, 44206), (496, 42067), (713, 29264), (944, 22103), (961, 21712), (1357, 15376), (1426, 14632), (1829, 11408), (1922, 10856), (2714, 7688), (2852, 7316), (3658, 5704), (3844, 5428)]