261219144

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1087}}^1$

素因数の和:1163

約数の個数: 128

約数和(自身を含む): 752025600

約数和(自身を除く): 490806456

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 19, 24, 31, 34, 38, 51, 57, 62, 68, 76, 93, 102, 114, 124, 136, 152, 186, 204, 228, 248, 323, 372, 408, 456, 527, 589, 646, 744, 969, 1054, 1087, 1178, 1292, 1581, 1767, 1938, 2108, 2174, 2356, 2584, 3162, 3261, 3534, 3876, 4216, 4348, 4712, 6324, 6522, 7068, 7752, 8696, 10013, 12648, 13044, 14136, 18479, 20026, 20653, 26088, 30039, 33697, 36958, 40052, 41306, 55437, 60078, 61959, 67394, 73916, 80104, 82612, 101091, 110874, 120156, 123918, 134788, 147832, 165224, 202182, 221748, 240312, 247836, 269576, 351101, 404364, 443496, 495672, 572849, 640243, 702202, 808728, 1053303, 1145698, 1280486, 1404404, 1718547, 1920729, 2106606, 2291396, 2560972, 2808808, 3437094, 3841458, 4213212, 4582792, 5121944, 6874188, 7682916, 8426424, 10884131, 13748376, 15365832, 21768262, 32652393, 43536524, 65304786, 87073048, 130609572, 261219144]

約数ペア:

[(1, 261219144), (2, 130609572), (3, 87073048), (4, 65304786), (6, 43536524), (8, 32652393), (12, 21768262), (17, 15365832), (19, 13748376), (24, 10884131), (31, 8426424), (34, 7682916), (38, 6874188), (51, 5121944), (57, 4582792), (62, 4213212), (68, 3841458), (76, 3437094), (93, 2808808), (102, 2560972), (114, 2291396), (124, 2106606), (136, 1920729), (152, 1718547), (186, 1404404), (204, 1280486), (228, 1145698), (248, 1053303), (323, 808728), (372, 702202), (408, 640243), (456, 572849), (527, 495672), (589, 443496), (646, 404364), (744, 351101), (969, 269576), (1054, 247836), (1087, 240312), (1178, 221748), (1292, 202182), (1581, 165224), (1767, 147832), (1938, 134788), (2108, 123918), (2174, 120156), (2356, 110874), (2584, 101091), (3162, 82612), (3261, 80104), (3534, 73916), (3876, 67394), (4216, 61959), (4348, 60078), (4712, 55437), (6324, 41306), (6522, 40052), (7068, 36958), (7752, 33697), (8696, 30039), (10013, 26088), (12648, 20653), (13044, 20026), (14136, 18479)]