77955860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{757}}^1$

素因数の和:1056

約数の個数: 48

約数和(自身を含む): 173187840

約数和(自身を除く): 95231980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 271, 380, 542, 757, 1084, 1355, 1514, 2710, 3028, 3785, 5149, 5420, 7570, 10298, 14383, 15140, 20596, 25745, 28766, 51490, 57532, 71915, 102980, 143830, 205147, 287660, 410294, 820588, 1025735, 2051470, 3897793, 4102940, 7795586, 15591172, 19488965, 38977930, 77955860]

約数ペア:

[(1, 77955860), (2, 38977930), (4, 19488965), (5, 15591172), (10, 7795586), (19, 4102940), (20, 3897793), (38, 2051470), (76, 1025735), (95, 820588), (190, 410294), (271, 287660), (380, 205147), (542, 143830), (757, 102980), (1084, 71915), (1355, 57532), (1514, 51490), (2710, 28766), (3028, 25745), (3785, 20596), (5149, 15140), (5420, 14383), (7570, 10298)]