28934620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 72930816

約数和(自身を除く): 43996196

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 67, 110, 130, 134, 143, 151, 220, 260, 268, 286, 302, 335, 572, 604, 670, 715, 737, 755, 871, 1340, 1430, 1474, 1510, 1661, 1742, 1963, 2860, 2948, 3020, 3322, 3484, 3685, 3926, 4355, 6644, 7370, 7852, 8305, 8710, 9581, 9815, 10117, 14740, 16610, 17420, 19162, 19630, 20234, 21593, 33220, 38324, 39260, 40468, 43186, 47905, 50585, 86372, 95810, 101170, 107965, 111287, 131521, 191620, 202340, 215930, 222574, 263042, 431860, 445148, 526084, 556435, 657605, 1112870, 1315210, 1446731, 2225740, 2630420, 2893462, 5786924, 7233655, 14467310, 28934620]

約数ペア:

[(1, 28934620), (2, 14467310), (4, 7233655), (5, 5786924), (10, 2893462), (11, 2630420), (13, 2225740), (20, 1446731), (22, 1315210), (26, 1112870), (44, 657605), (52, 556435), (55, 526084), (65, 445148), (67, 431860), (110, 263042), (130, 222574), (134, 215930), (143, 202340), (151, 191620), (220, 131521), (260, 111287), (268, 107965), (286, 101170), (302, 95810), (335, 86372), (572, 50585), (604, 47905), (670, 43186), (715, 40468), (737, 39260), (755, 38324), (871, 33220), (1340, 21593), (1430, 20234), (1474, 19630), (1510, 19162), (1661, 17420), (1742, 16610), (1963, 14740), (2860, 10117), (2948, 9815), (3020, 9581), (3322, 8710), (3484, 8305), (3685, 7852), (3926, 7370), (4355, 6644)]