68861680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:314

約数の個数: 80

約数和(自身を含む): 165507264

約数和(自身を除く): 96645584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 103, 122, 137, 206, 244, 274, 305, 412, 488, 515, 548, 610, 685, 824, 976, 1030, 1096, 1220, 1370, 1648, 2060, 2192, 2440, 2740, 4120, 4880, 5480, 6283, 8240, 8357, 10960, 12566, 14111, 16714, 25132, 28222, 31415, 33428, 41785, 50264, 56444, 62830, 66856, 70555, 83570, 100528, 112888, 125660, 133712, 141110, 167140, 225776, 251320, 282220, 334280, 502640, 564440, 668560, 860771, 1128880, 1721542, 3443084, 4303855, 6886168, 8607710, 13772336, 17215420, 34430840, 68861680]

約数ペア:

[(1, 68861680), (2, 34430840), (4, 17215420), (5, 13772336), (8, 8607710), (10, 6886168), (16, 4303855), (20, 3443084), (40, 1721542), (61, 1128880), (80, 860771), (103, 668560), (122, 564440), (137, 502640), (206, 334280), (244, 282220), (274, 251320), (305, 225776), (412, 167140), (488, 141110), (515, 133712), (548, 125660), (610, 112888), (685, 100528), (824, 83570), (976, 70555), (1030, 66856), (1096, 62830), (1220, 56444), (1370, 50264), (1648, 41785), (2060, 33428), (2192, 31415), (2440, 28222), (2740, 25132), (4120, 16714), (4880, 14111), (5480, 12566), (6283, 10960), (8240, 8357)]