51417080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 138801600

約数和(自身を除く): 87384520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 89, 101, 104, 110, 130, 143, 178, 202, 220, 260, 286, 356, 404, 440, 445, 505, 520, 572, 712, 715, 808, 890, 979, 1010, 1111, 1144, 1157, 1313, 1430, 1780, 1958, 2020, 2222, 2314, 2626, 2860, 3560, 3916, 4040, 4444, 4628, 4895, 5252, 5555, 5720, 5785, 6565, 7832, 8888, 8989, 9256, 9790, 10504, 11110, 11570, 12727, 13130, 14443, 17978, 19580, 22220, 23140, 25454, 26260, 28886, 35956, 39160, 44440, 44945, 46280, 50908, 52520, 57772, 63635, 71912, 72215, 89890, 98879, 101816, 115544, 116857, 127270, 144430, 179780, 197758, 233714, 254540, 288860, 359560, 395516, 467428, 494395, 509080, 577720, 584285, 791032, 934856, 988790, 1168570, 1285427, 1977580, 2337140, 2570854, 3955160, 4674280, 5141708, 6427135, 10283416, 12854270, 25708540, 51417080]

約数ペア:

[(1, 51417080), (2, 25708540), (4, 12854270), (5, 10283416), (8, 6427135), (10, 5141708), (11, 4674280), (13, 3955160), (20, 2570854), (22, 2337140), (26, 1977580), (40, 1285427), (44, 1168570), (52, 988790), (55, 934856), (65, 791032), (88, 584285), (89, 577720), (101, 509080), (104, 494395), (110, 467428), (130, 395516), (143, 359560), (178, 288860), (202, 254540), (220, 233714), (260, 197758), (286, 179780), (356, 144430), (404, 127270), (440, 116857), (445, 115544), (505, 101816), (520, 98879), (572, 89890), (712, 72215), (715, 71912), (808, 63635), (890, 57772), (979, 52520), (1010, 50908), (1111, 46280), (1144, 44945), (1157, 44440), (1313, 39160), (1430, 35956), (1780, 28886), (1958, 26260), (2020, 25454), (2222, 23140), (2314, 22220), (2626, 19580), (2860, 17978), (3560, 14443), (3916, 13130), (4040, 12727), (4444, 11570), (4628, 11110), (4895, 10504), (5252, 9790), (5555, 9256), (5720, 8989), (5785, 8888), (6565, 7832)]