65464840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:215

約数の個数: 128

約数和(自身を含む): 177292800

約数和(自身を除く): 111827960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 71, 74, 89, 140, 142, 148, 178, 185, 259, 280, 284, 296, 355, 356, 370, 445, 497, 518, 568, 623, 710, 712, 740, 890, 994, 1036, 1246, 1295, 1420, 1480, 1780, 1988, 2072, 2485, 2492, 2590, 2627, 2840, 3115, 3293, 3560, 3976, 4970, 4984, 5180, 5254, 6230, 6319, 6586, 9940, 10360, 10508, 12460, 12638, 13135, 13172, 16465, 18389, 19880, 21016, 23051, 24920, 25276, 26270, 26344, 31595, 32930, 36778, 44233, 46102, 50552, 52540, 63190, 65860, 73556, 88466, 91945, 92204, 105080, 115255, 126380, 131720, 147112, 176932, 183890, 184408, 221165, 230510, 233803, 252760, 353864, 367780, 442330, 461020, 467606, 735560, 884660, 922040, 935212, 1169015, 1636621, 1769320, 1870424, 2338030, 3273242, 4676060, 6546484, 8183105, 9352120, 13092968, 16366210, 32732420, 65464840]

約数ペア:

[(1, 65464840), (2, 32732420), (4, 16366210), (5, 13092968), (7, 9352120), (8, 8183105), (10, 6546484), (14, 4676060), (20, 3273242), (28, 2338030), (35, 1870424), (37, 1769320), (40, 1636621), (56, 1169015), (70, 935212), (71, 922040), (74, 884660), (89, 735560), (140, 467606), (142, 461020), (148, 442330), (178, 367780), (185, 353864), (259, 252760), (280, 233803), (284, 230510), (296, 221165), (355, 184408), (356, 183890), (370, 176932), (445, 147112), (497, 131720), (518, 126380), (568, 115255), (623, 105080), (710, 92204), (712, 91945), (740, 88466), (890, 73556), (994, 65860), (1036, 63190), (1246, 52540), (1295, 50552), (1420, 46102), (1480, 44233), (1780, 36778), (1988, 32930), (2072, 31595), (2485, 26344), (2492, 26270), (2590, 25276), (2627, 24920), (2840, 23051), (3115, 21016), (3293, 19880), (3560, 18389), (3976, 16465), (4970, 13172), (4984, 13135), (5180, 12638), (5254, 12460), (6230, 10508), (6319, 10360), (6586, 9940)]