20125915545

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11071}}^1\times {\mathrm{7129}}^1$

素因数の和:18225

約数の個数: 32

約数和(自身を含む): 34103531520

約数和(自身を除く): 13977615975

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 7129, 11071, 21387, 33213, 35645, 55355, 106935, 121193, 166065, 188207, 363579, 564621, 605965, 941035, 1817895, 2823105, 78925159, 236775477, 394625795, 1183877385, 1341727703, 4025183109, 6708638515, 20125915545]

約数ペア:

[(1, 20125915545), (3, 6708638515), (5, 4025183109), (15, 1341727703), (17, 1183877385), (51, 394625795), (85, 236775477), (255, 78925159), (7129, 2823105), (11071, 1817895), (21387, 941035), (33213, 605965), (35645, 564621), (55355, 363579), (106935, 188207), (121193, 166065)]