28649680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:328

約数の個数: 80

約数和(自身を含む): 70508880

約数和(自身を除く): 41859200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 53, 58, 80, 106, 116, 145, 212, 232, 233, 265, 290, 424, 464, 466, 530, 580, 848, 932, 1060, 1160, 1165, 1537, 1864, 2120, 2320, 2330, 3074, 3728, 4240, 4660, 6148, 6757, 7685, 9320, 12296, 12349, 13514, 15370, 18640, 24592, 24698, 27028, 30740, 33785, 49396, 54056, 61480, 61745, 67570, 98792, 108112, 122960, 123490, 135140, 197584, 246980, 270280, 358121, 493960, 540560, 716242, 987920, 1432484, 1790605, 2864968, 3581210, 5729936, 7162420, 14324840, 28649680]

約数ペア:

[(1, 28649680), (2, 14324840), (4, 7162420), (5, 5729936), (8, 3581210), (10, 2864968), (16, 1790605), (20, 1432484), (29, 987920), (40, 716242), (53, 540560), (58, 493960), (80, 358121), (106, 270280), (116, 246980), (145, 197584), (212, 135140), (232, 123490), (233, 122960), (265, 108112), (290, 98792), (424, 67570), (464, 61745), (466, 61480), (530, 54056), (580, 49396), (848, 33785), (932, 30740), (1060, 27028), (1160, 24698), (1165, 24592), (1537, 18640), (1864, 15370), (2120, 13514), (2320, 12349), (2330, 12296), (3074, 9320), (3728, 7685), (4240, 6757), (4660, 6148)]