66813880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{661}}^1$

素因数の和:717

約数の個数: 96

約数和(自身を含む): 181599840

約数和(自身を除く): 114785960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 361, 380, 532, 661, 665, 722, 760, 1064, 1322, 1330, 1444, 1805, 2527, 2644, 2660, 2888, 3305, 3610, 4627, 5054, 5288, 5320, 6610, 7220, 9254, 10108, 12559, 12635, 13220, 14440, 18508, 20216, 23135, 25118, 25270, 26440, 37016, 46270, 50236, 50540, 62795, 87913, 92540, 100472, 101080, 125590, 175826, 185080, 238621, 251180, 351652, 439565, 477242, 502360, 703304, 879130, 954484, 1193105, 1670347, 1758260, 1908968, 2386210, 3340694, 3516520, 4772420, 6681388, 8351735, 9544840, 13362776, 16703470, 33406940, 66813880]

約数ペア:

[(1, 66813880), (2, 33406940), (4, 16703470), (5, 13362776), (7, 9544840), (8, 8351735), (10, 6681388), (14, 4772420), (19, 3516520), (20, 3340694), (28, 2386210), (35, 1908968), (38, 1758260), (40, 1670347), (56, 1193105), (70, 954484), (76, 879130), (95, 703304), (133, 502360), (140, 477242), (152, 439565), (190, 351652), (266, 251180), (280, 238621), (361, 185080), (380, 175826), (532, 125590), (661, 101080), (665, 100472), (722, 92540), (760, 87913), (1064, 62795), (1322, 50540), (1330, 50236), (1444, 46270), (1805, 37016), (2527, 26440), (2644, 25270), (2660, 25118), (2888, 23135), (3305, 20216), (3610, 18508), (4627, 14440), (5054, 13220), (5288, 12635), (5320, 12559), (6610, 10108), (7220, 9254)]