19802552

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 128

約数和(自身を含む): 51425280

約数和(自身を除く): 31622728

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 31, 34, 44, 56, 61, 62, 68, 77, 88, 119, 122, 124, 136, 154, 187, 217, 238, 244, 248, 308, 341, 374, 427, 434, 476, 488, 527, 616, 671, 682, 748, 854, 868, 952, 1037, 1054, 1309, 1342, 1364, 1496, 1708, 1736, 1891, 2074, 2108, 2387, 2618, 2684, 2728, 3416, 3689, 3782, 4148, 4216, 4697, 4774, 5236, 5368, 5797, 7259, 7378, 7564, 8296, 9394, 9548, 10472, 11407, 11594, 13237, 14518, 14756, 15128, 18788, 19096, 20801, 22814, 23188, 26474, 29036, 29512, 32147, 37576, 40579, 41602, 45628, 46376, 52948, 58072, 64294, 79849, 81158, 83204, 91256, 105896, 128588, 145607, 159698, 162316, 166408, 225029, 257176, 291214, 319396, 324632, 353617, 450058, 582428, 638792, 707234, 900116, 1164856, 1414468, 1800232, 2475319, 2828936, 4950638, 9901276, 19802552]

約数ペア:

[(1, 19802552), (2, 9901276), (4, 4950638), (7, 2828936), (8, 2475319), (11, 1800232), (14, 1414468), (17, 1164856), (22, 900116), (28, 707234), (31, 638792), (34, 582428), (44, 450058), (56, 353617), (61, 324632), (62, 319396), (68, 291214), (77, 257176), (88, 225029), (119, 166408), (122, 162316), (124, 159698), (136, 145607), (154, 128588), (187, 105896), (217, 91256), (238, 83204), (244, 81158), (248, 79849), (308, 64294), (341, 58072), (374, 52948), (427, 46376), (434, 45628), (476, 41602), (488, 40579), (527, 37576), (616, 32147), (671, 29512), (682, 29036), (748, 26474), (854, 23188), (868, 22814), (952, 20801), (1037, 19096), (1054, 18788), (1309, 15128), (1342, 14756), (1364, 14518), (1496, 13237), (1708, 11594), (1736, 11407), (1891, 10472), (2074, 9548), (2108, 9394), (2387, 8296), (2618, 7564), (2684, 7378), (2728, 7259), (3416, 5797), (3689, 5368), (3782, 5236), (4148, 4774), (4216, 4697)]