278370456

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{647}}^1$

素因数の和:873

約数の個数: 128

約数和(自身を含む): 862202880

約数和(自身を除く): 583832424

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 197, 273, 312, 364, 394, 546, 591, 647, 728, 788, 1092, 1182, 1294, 1379, 1576, 1941, 2184, 2364, 2561, 2588, 2758, 3882, 4137, 4529, 4728, 5122, 5176, 5516, 7683, 7764, 8274, 8411, 9058, 10244, 11032, 13587, 15366, 15528, 16548, 16822, 17927, 18116, 20488, 25233, 27174, 30732, 33096, 33644, 35854, 36232, 50466, 53781, 54348, 58877, 61464, 67288, 71708, 100932, 107562, 108696, 117754, 127459, 143416, 176631, 201864, 215124, 235508, 254918, 353262, 382377, 430248, 471016, 509836, 706524, 764754, 892213, 1019672, 1413048, 1529508, 1656967, 1784426, 2676639, 3059016, 3313934, 3568852, 4970901, 5353278, 6627868, 7137704, 9941802, 10706556, 11598769, 13255736, 19883604, 21413112, 23197538, 34796307, 39767208, 46395076, 69592614, 92790152, 139185228, 278370456]

約数ペア:

[(1, 278370456), (2, 139185228), (3, 92790152), (4, 69592614), (6, 46395076), (7, 39767208), (8, 34796307), (12, 23197538), (13, 21413112), (14, 19883604), (21, 13255736), (24, 11598769), (26, 10706556), (28, 9941802), (39, 7137704), (42, 6627868), (52, 5353278), (56, 4970901), (78, 3568852), (84, 3313934), (91, 3059016), (104, 2676639), (156, 1784426), (168, 1656967), (182, 1529508), (197, 1413048), (273, 1019672), (312, 892213), (364, 764754), (394, 706524), (546, 509836), (591, 471016), (647, 430248), (728, 382377), (788, 353262), (1092, 254918), (1182, 235508), (1294, 215124), (1379, 201864), (1576, 176631), (1941, 143416), (2184, 127459), (2364, 117754), (2561, 108696), (2588, 107562), (2758, 100932), (3882, 71708), (4137, 67288), (4529, 61464), (4728, 58877), (5122, 54348), (5176, 53781), (5516, 50466), (7683, 36232), (7764, 35854), (8274, 33644), (8411, 33096), (9058, 30732), (10244, 27174), (11032, 25233), (13587, 20488), (15366, 18116), (15528, 17927), (16548, 16822)]