256978008

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{181}}^1\times {\mathrm{313}}^1$

素因数の和:519

約数の個数: 160

約数和(自身を含む): 829788960

約数和(自身を除く): 572810952

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 181, 189, 216, 252, 313, 324, 362, 378, 504, 543, 567, 626, 648, 724, 756, 939, 1086, 1134, 1252, 1267, 1448, 1512, 1629, 1878, 2172, 2191, 2268, 2504, 2534, 2817, 3258, 3756, 3801, 4344, 4382, 4536, 4887, 5068, 5634, 6516, 6573, 7512, 7602, 8451, 8764, 9774, 10136, 11268, 11403, 13032, 13146, 14661, 15204, 16902, 17528, 19548, 19719, 22536, 22806, 25353, 26292, 29322, 30408, 33804, 34209, 39096, 39438, 45612, 50706, 52584, 56653, 58644, 59157, 67608, 68418, 78876, 91224, 101412, 102627, 113306, 117288, 118314, 136836, 157752, 169959, 177471, 202824, 205254, 226612, 236628, 273672, 339918, 354942, 396571, 410508, 453224, 473256, 509877, 679836, 709884, 793142, 821016, 1019754, 1189713, 1359672, 1419768, 1529631, 1586284, 2039508, 2379426, 3059262, 3172568, 3569139, 4079016, 4588893, 4758852, 6118524, 7138278, 9177786, 9517704, 10707417, 12237048, 14276556, 18355572, 21414834, 28553112, 32122251, 36711144, 42829668, 64244502, 85659336, 128489004, 256978008]

約数ペア:

[(1, 256978008), (2, 128489004), (3, 85659336), (4, 64244502), (6, 42829668), (7, 36711144), (8, 32122251), (9, 28553112), (12, 21414834), (14, 18355572), (18, 14276556), (21, 12237048), (24, 10707417), (27, 9517704), (28, 9177786), (36, 7138278), (42, 6118524), (54, 4758852), (56, 4588893), (63, 4079016), (72, 3569139), (81, 3172568), (84, 3059262), (108, 2379426), (126, 2039508), (162, 1586284), (168, 1529631), (181, 1419768), (189, 1359672), (216, 1189713), (252, 1019754), (313, 821016), (324, 793142), (362, 709884), (378, 679836), (504, 509877), (543, 473256), (567, 453224), (626, 410508), (648, 396571), (724, 354942), (756, 339918), (939, 273672), (1086, 236628), (1134, 226612), (1252, 205254), (1267, 202824), (1448, 177471), (1512, 169959), (1629, 157752), (1878, 136836), (2172, 118314), (2191, 117288), (2268, 113306), (2504, 102627), (2534, 101412), (2817, 91224), (3258, 78876), (3756, 68418), (3801, 67608), (4344, 59157), (4382, 58644), (4536, 56653), (4887, 52584), (5068, 50706), (5634, 45612), (6516, 39438), (6573, 39096), (7512, 34209), (7602, 33804), (8451, 30408), (8764, 29322), (9774, 26292), (10136, 25353), (11268, 22806), (11403, 22536), (13032, 19719), (13146, 19548), (14661, 17528), (15204, 16902)]