78696290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{431}}^1$

素因数の和:519

約数の個数: 48

約数和(自身を含む): 154431360

約数和(自身を除く): 75735070

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 431, 589, 862, 961, 1178, 1922, 2155, 2945, 4310, 4805, 5890, 8189, 9610, 13361, 16378, 18259, 26722, 36518, 40945, 66805, 81890, 91295, 133610, 182590, 253859, 414191, 507718, 828382, 1269295, 2070955, 2538590, 4141910, 7869629, 15739258, 39348145, 78696290]

約数ペア:

[(1, 78696290), (2, 39348145), (5, 15739258), (10, 7869629), (19, 4141910), (31, 2538590), (38, 2070955), (62, 1269295), (95, 828382), (155, 507718), (190, 414191), (310, 253859), (431, 182590), (589, 133610), (862, 91295), (961, 81890), (1178, 66805), (1922, 40945), (2155, 36518), (2945, 26722), (4310, 18259), (4805, 16378), (5890, 13361), (8189, 9610)]