2165915440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67181}}^1$

素因数の和:67238

約数の個数: 80

約数和(自身を含む): 5598141696

約数和(自身を除く): 3432226256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 32240, 67181, 134362, 268724, 335905, 537448, 671810, 873353, 1074896, 1343620, 1746706, 2082611, 2687240, 3493412, 4165222, 4366765, 5374480, 6986824, 8330444, 8733530, 10413055, 13973648, 16660888, 17467060, 20826110, 27073943, 33321776, 34934120, 41652220, 54147886, 69868240, 83304440, 108295772, 135369715, 166608880, 216591544, 270739430, 433183088, 541478860, 1082957720, 2165915440]

約数ペア:

[(1, 2165915440), (2, 1082957720), (4, 541478860), (5, 433183088), (8, 270739430), (10, 216591544), (13, 166608880), (16, 135369715), (20, 108295772), (26, 83304440), (31, 69868240), (40, 54147886), (52, 41652220), (62, 34934120), (65, 33321776), (80, 27073943), (104, 20826110), (124, 17467060), (130, 16660888), (155, 13973648), (208, 10413055), (248, 8733530), (260, 8330444), (310, 6986824), (403, 5374480), (496, 4366765), (520, 4165222), (620, 3493412), (806, 2687240), (1040, 2082611), (1240, 1746706), (1612, 1343620), (2015, 1074896), (2480, 873353), (3224, 671810), (4030, 537448), (6448, 335905), (8060, 268724), (16120, 134362), (32240, 67181)]