205884640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{103}}^1$

素因数の和:193

約数の個数: 144

約数和(自身を含む): 546515424

約数和(自身を除く): 340630784

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 103, 104, 124, 130, 155, 160, 206, 208, 248, 260, 310, 403, 412, 416, 496, 515, 520, 620, 806, 824, 961, 992, 1030, 1040, 1240, 1339, 1612, 1648, 1922, 2015, 2060, 2080, 2480, 2678, 3193, 3224, 3296, 3844, 4030, 4120, 4805, 4960, 5356, 6386, 6448, 6695, 7688, 8060, 8240, 9610, 10712, 12493, 12772, 12896, 13390, 15376, 15965, 16120, 16480, 19220, 21424, 24986, 25544, 26780, 30752, 31930, 32240, 38440, 41509, 42848, 49972, 51088, 53560, 62465, 63860, 64480, 76880, 83018, 98983, 99944, 102176, 107120, 124930, 127720, 153760, 166036, 197966, 199888, 207545, 214240, 249860, 255440, 332072, 395932, 399776, 415090, 494915, 499720, 510880, 664144, 791864, 830180, 989830, 999440, 1286779, 1328288, 1583728, 1660360, 1979660, 1998880, 2573558, 3167456, 3320720, 3959320, 5147116, 6433895, 6641440, 7918640, 10294232, 12867790, 15837280, 20588464, 25735580, 41176928, 51471160, 102942320, 205884640]

約数ペア:

[(1, 205884640), (2, 102942320), (4, 51471160), (5, 41176928), (8, 25735580), (10, 20588464), (13, 15837280), (16, 12867790), (20, 10294232), (26, 7918640), (31, 6641440), (32, 6433895), (40, 5147116), (52, 3959320), (62, 3320720), (65, 3167456), (80, 2573558), (103, 1998880), (104, 1979660), (124, 1660360), (130, 1583728), (155, 1328288), (160, 1286779), (206, 999440), (208, 989830), (248, 830180), (260, 791864), (310, 664144), (403, 510880), (412, 499720), (416, 494915), (496, 415090), (515, 399776), (520, 395932), (620, 332072), (806, 255440), (824, 249860), (961, 214240), (992, 207545), (1030, 199888), (1040, 197966), (1240, 166036), (1339, 153760), (1612, 127720), (1648, 124930), (1922, 107120), (2015, 102176), (2060, 99944), (2080, 98983), (2480, 83018), (2678, 76880), (3193, 64480), (3224, 63860), (3296, 62465), (3844, 53560), (4030, 51088), (4120, 49972), (4805, 42848), (4960, 41509), (5356, 38440), (6386, 32240), (6448, 31930), (6695, 30752), (7688, 26780), (8060, 25544), (8240, 24986), (9610, 21424), (10712, 19220), (12493, 16480), (12772, 16120), (12896, 15965), (13390, 15376)]