18988896892

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:552

約数の個数: 144

約数和(自身を含む): 40927057920

約数和(自身を除く): 21938161028

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 71, 98, 116, 142, 196, 203, 211, 223, 284, 406, 422, 446, 497, 812, 844, 892, 994, 1421, 1477, 1561, 1988, 2059, 2842, 2954, 3122, 3479, 4118, 5684, 5908, 6119, 6244, 6467, 6958, 8236, 10339, 10927, 12238, 12934, 13916, 14413, 14981, 15833, 20678, 21854, 24476, 25868, 28826, 29962, 31666, 41356, 42833, 43708, 45269, 47053, 57652, 59924, 63332, 85666, 90538, 94106, 100891, 104867, 110831, 171332, 181076, 188212, 201782, 209734, 221662, 299831, 316883, 329371, 403564, 419468, 434449, 443324, 459157, 599662, 633766, 658742, 734069, 775817, 868898, 918314, 1199324, 1267532, 1317484, 1364537, 1468138, 1551634, 1737796, 1836628, 2305597, 2729074, 2936276, 3041143, 3103268, 3214099, 3340763, 4611194, 5458148, 6082286, 6428198, 6681526, 9222388, 9551759, 12164572, 12856396, 13363052, 19103518, 21288001, 22498693, 23385341, 38207036, 42576002, 44997386, 46770682, 66862313, 85152004, 89994772, 93541364, 96882127, 133724626, 163697387, 193764254, 267449252, 327394774, 387528508, 654789548, 678174889, 1356349778, 2712699556, 4747224223, 9494448446, 18988896892]

約数ペア:

[(1, 18988896892), (2, 9494448446), (4, 4747224223), (7, 2712699556), (14, 1356349778), (28, 678174889), (29, 654789548), (49, 387528508), (58, 327394774), (71, 267449252), (98, 193764254), (116, 163697387), (142, 133724626), (196, 96882127), (203, 93541364), (211, 89994772), (223, 85152004), (284, 66862313), (406, 46770682), (422, 44997386), (446, 42576002), (497, 38207036), (812, 23385341), (844, 22498693), (892, 21288001), (994, 19103518), (1421, 13363052), (1477, 12856396), (1561, 12164572), (1988, 9551759), (2059, 9222388), (2842, 6681526), (2954, 6428198), (3122, 6082286), (3479, 5458148), (4118, 4611194), (5684, 3340763), (5908, 3214099), (6119, 3103268), (6244, 3041143), (6467, 2936276), (6958, 2729074), (8236, 2305597), (10339, 1836628), (10927, 1737796), (12238, 1551634), (12934, 1468138), (13916, 1364537), (14413, 1317484), (14981, 1267532), (15833, 1199324), (20678, 918314), (21854, 868898), (24476, 775817), (25868, 734069), (28826, 658742), (29962, 633766), (31666, 599662), (41356, 459157), (42833, 443324), (43708, 434449), (45269, 419468), (47053, 403564), (57652, 329371), (59924, 316883), (63332, 299831), (85666, 221662), (90538, 209734), (94106, 201782), (100891, 188212), (104867, 181076), (110831, 171332)]