66752780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1621}}^1$

素因数の和:1730

約数の個数: 48

約数和(自身を含む): 147147840

約数和(自身を除く): 80395060

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 710, 1420, 1621, 2059, 3242, 4118, 6484, 8105, 8236, 10295, 16210, 20590, 32420, 41180, 47009, 94018, 115091, 188036, 230182, 235045, 460364, 470090, 575455, 940180, 1150910, 2301820, 3337639, 6675278, 13350556, 16688195, 33376390, 66752780]

約数ペア:

[(1, 66752780), (2, 33376390), (4, 16688195), (5, 13350556), (10, 6675278), (20, 3337639), (29, 2301820), (58, 1150910), (71, 940180), (116, 575455), (142, 470090), (145, 460364), (284, 235045), (290, 230182), (355, 188036), (580, 115091), (710, 94018), (1420, 47009), (1621, 41180), (2059, 32420), (3242, 20590), (4118, 16210), (6484, 10295), (8105, 8236)]