78020240

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18401}}^1$

素因数の和:18467

約数の個数: 40

約数和(自身を含む): 184829688

約数和(自身を除く): 106809448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 18401, 36802, 73604, 92005, 147208, 184010, 294416, 368020, 736040, 975253, 1472080, 1950506, 3901012, 4876265, 7802024, 9752530, 15604048, 19505060, 39010120, 78020240]

約数ペア:

[(1, 78020240), (2, 39010120), (4, 19505060), (5, 15604048), (8, 9752530), (10, 7802024), (16, 4876265), (20, 3901012), (40, 1950506), (53, 1472080), (80, 975253), (106, 736040), (212, 368020), (265, 294416), (424, 184010), (530, 147208), (848, 92005), (1060, 73604), (2120, 36802), (4240, 18401)]