71926780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{991}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 159989760

約数和(自身を除く): 88062980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 191, 380, 382, 764, 955, 991, 1910, 1982, 3629, 3820, 3964, 4955, 7258, 9910, 14516, 18145, 18829, 19820, 36290, 37658, 72580, 75316, 94145, 188290, 189281, 376580, 378562, 757124, 946405, 1892810, 3596339, 3785620, 7192678, 14385356, 17981695, 35963390, 71926780]

約数ペア:

[(1, 71926780), (2, 35963390), (4, 17981695), (5, 14385356), (10, 7192678), (19, 3785620), (20, 3596339), (38, 1892810), (76, 946405), (95, 757124), (190, 378562), (191, 376580), (380, 189281), (382, 188290), (764, 94145), (955, 75316), (991, 72580), (1910, 37658), (1982, 36290), (3629, 19820), (3820, 18829), (3964, 18145), (4955, 14516), (7258, 9910)]