91508840

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3461}}^1$

素因数の和:4133

約数の個数: 32

約数和(自身を含む): 206265960

約数和(自身を除く): 114757120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 3461, 5288, 6610, 6922, 13220, 13844, 17305, 26440, 27688, 34610, 69220, 138440, 2287721, 4575442, 9150884, 11438605, 18301768, 22877210, 45754420, 91508840]

約数ペア:

[(1, 91508840), (2, 45754420), (4, 22877210), (5, 18301768), (8, 11438605), (10, 9150884), (20, 4575442), (40, 2287721), (661, 138440), (1322, 69220), (2644, 34610), (3305, 27688), (3461, 26440), (5288, 17305), (6610, 13844), (6922, 13220)]