261892488

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{557}}^1$

素因数の和:727

約数の個数: 128

約数和(自身を含む): 776200320

約数和(自身を除く): 514307832

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 33, 39, 44, 52, 66, 78, 88, 104, 132, 137, 143, 156, 264, 274, 286, 312, 411, 429, 548, 557, 572, 822, 858, 1096, 1114, 1144, 1507, 1644, 1671, 1716, 1781, 2228, 3014, 3288, 3342, 3432, 3562, 4456, 4521, 5343, 6028, 6127, 6684, 7124, 7241, 9042, 10686, 12056, 12254, 13368, 14248, 14482, 18084, 18381, 19591, 21372, 21723, 24508, 28964, 36168, 36762, 39182, 42744, 43446, 49016, 57928, 58773, 73524, 76309, 78364, 79651, 86892, 117546, 147048, 152618, 156728, 159302, 173784, 228927, 235092, 238953, 305236, 318604, 457854, 470184, 477906, 610472, 637208, 839399, 915708, 955812, 992017, 1678798, 1831416, 1911624, 1984034, 2518197, 2976051, 3357596, 3968068, 5036394, 5952102, 6715192, 7936136, 10072788, 10912187, 11904204, 20145576, 21824374, 23808408, 32736561, 43648748, 65473122, 87297496, 130946244, 261892488]

約数ペア:

[(1, 261892488), (2, 130946244), (3, 87297496), (4, 65473122), (6, 43648748), (8, 32736561), (11, 23808408), (12, 21824374), (13, 20145576), (22, 11904204), (24, 10912187), (26, 10072788), (33, 7936136), (39, 6715192), (44, 5952102), (52, 5036394), (66, 3968068), (78, 3357596), (88, 2976051), (104, 2518197), (132, 1984034), (137, 1911624), (143, 1831416), (156, 1678798), (264, 992017), (274, 955812), (286, 915708), (312, 839399), (411, 637208), (429, 610472), (548, 477906), (557, 470184), (572, 457854), (822, 318604), (858, 305236), (1096, 238953), (1114, 235092), (1144, 228927), (1507, 173784), (1644, 159302), (1671, 156728), (1716, 152618), (1781, 147048), (2228, 117546), (3014, 86892), (3288, 79651), (3342, 78364), (3432, 76309), (3562, 73524), (4456, 58773), (4521, 57928), (5343, 49016), (6028, 43446), (6127, 42744), (6684, 39182), (7124, 36762), (7241, 36168), (9042, 28964), (10686, 24508), (12056, 21723), (12254, 21372), (13368, 19591), (14248, 18381), (14482, 18084)]