164856680

素因数分解:

$2^3\times 5^1\times {\mathrm{709}}^1\times {\mathrm{5813}}^1$

素因数の和:6533

約数の個数: 32

約数和(自身を含む): 371514600

約数和(自身を除く): 206657920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 709, 1418, 2836, 3545, 5672, 5813, 7090, 11626, 14180, 23252, 28360, 29065, 46504, 58130, 116260, 232520, 4121417, 8242834, 16485668, 20607085, 32971336, 41214170, 82428340, 164856680]

約数ペア:

[(1, 164856680), (2, 82428340), (4, 41214170), (5, 32971336), (8, 20607085), (10, 16485668), (20, 8242834), (40, 4121417), (709, 232520), (1418, 116260), (2836, 58130), (3545, 46504), (5672, 29065), (5813, 28360), (7090, 23252), (11626, 14180)]