20804725425

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{28051}}^1$

素因数の和:28135

約数の個数: 96

約数和(自身を含む): 40071720960

約数和(自身を除く): 19266995535

約数列:

[1, 3, 5, 11, 15, 25, 29, 31, 33, 55, 75, 87, 93, 145, 155, 165, 275, 319, 341, 435, 465, 725, 775, 825, 899, 957, 1023, 1595, 1705, 2175, 2325, 2697, 4495, 4785, 5115, 7975, 8525, 9889, 13485, 22475, 23925, 25575, 28051, 29667, 49445, 67425, 84153, 140255, 148335, 247225, 308561, 420765, 701275, 741675, 813479, 869581, 925683, 1542805, 2103825, 2440437, 2608743, 4067395, 4347905, 4628415, 7714025, 8948269, 9565391, 12202185, 13043715, 20336975, 21739525, 23142075, 25217849, 26844807, 28696173, 44741345, 47826955, 61010925, 65218575, 75653547, 126089245, 134224035, 143480865, 223706725, 239134775, 277396339, 378267735, 630446225, 671120175, 717404325, 832189017, 1386981695, 1891338675, 4160945085, 6934908475, 20804725425]

約数ペア:

[(1, 20804725425), (3, 6934908475), (5, 4160945085), (11, 1891338675), (15, 1386981695), (25, 832189017), (29, 717404325), (31, 671120175), (33, 630446225), (55, 378267735), (75, 277396339), (87, 239134775), (93, 223706725), (145, 143480865), (155, 134224035), (165, 126089245), (275, 75653547), (319, 65218575), (341, 61010925), (435, 47826955), (465, 44741345), (725, 28696173), (775, 26844807), (825, 25217849), (899, 23142075), (957, 21739525), (1023, 20336975), (1595, 13043715), (1705, 12202185), (2175, 9565391), (2325, 8948269), (2697, 7714025), (4495, 4628415), (4785, 4347905), (5115, 4067395), (7975, 2608743), (8525, 2440437), (9889, 2103825), (13485, 1542805), (22475, 925683), (23925, 869581), (25575, 813479), (28051, 741675), (29667, 701275), (49445, 420765), (67425, 308561), (84153, 247225), (140255, 148335)]