25324280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 59590080

約数和(自身を除く): 34265800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 71, 74, 142, 148, 185, 241, 284, 296, 355, 370, 482, 568, 710, 740, 964, 1205, 1420, 1480, 1928, 2410, 2627, 2840, 4820, 5254, 8917, 9640, 10508, 13135, 17111, 17834, 21016, 26270, 34222, 35668, 44585, 52540, 68444, 71336, 85555, 89170, 105080, 136888, 171110, 178340, 342220, 356680, 633107, 684440, 1266214, 2532428, 3165535, 5064856, 6331070, 12662140, 25324280]

約数ペア:

[(1, 25324280), (2, 12662140), (4, 6331070), (5, 5064856), (8, 3165535), (10, 2532428), (20, 1266214), (37, 684440), (40, 633107), (71, 356680), (74, 342220), (142, 178340), (148, 171110), (185, 136888), (241, 105080), (284, 89170), (296, 85555), (355, 71336), (370, 68444), (482, 52540), (568, 44585), (710, 35668), (740, 34222), (964, 26270), (1205, 21016), (1420, 17834), (1480, 17111), (1928, 13135), (2410, 10508), (2627, 9640), (2840, 8917), (4820, 5254)]