278463328

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:229

約数の個数: 144

約数和(自身を含む): 672924672

約数和(自身を除く): 394461344

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 31, 32, 44, 52, 62, 88, 104, 124, 143, 151, 169, 176, 208, 248, 286, 302, 338, 341, 352, 403, 416, 496, 572, 604, 676, 682, 806, 992, 1144, 1208, 1352, 1364, 1612, 1661, 1859, 1963, 2288, 2416, 2704, 2728, 3224, 3322, 3718, 3926, 4433, 4576, 4681, 4832, 5239, 5408, 5456, 6448, 6644, 7436, 7852, 8866, 9362, 10478, 10912, 12896, 13288, 14872, 15704, 17732, 18724, 20956, 21593, 25519, 26576, 29744, 31408, 35464, 37448, 41912, 43186, 51038, 51491, 53152, 57629, 59488, 60853, 62816, 70928, 74896, 83824, 86372, 102076, 102982, 115258, 121706, 141856, 149792, 167648, 172744, 204152, 205964, 230516, 243412, 280709, 345488, 408304, 411928, 461032, 486824, 561418, 669383, 690976, 791089, 816608, 823856, 922064, 973648, 1122836, 1338766, 1582178, 1647712, 1844128, 1947296, 2245672, 2677532, 3164356, 4491344, 5355064, 6328712, 8701979, 8982688, 10710128, 12657424, 17403958, 21420256, 25314848, 34807916, 69615832, 139231664, 278463328]

約数ペア:

[(1, 278463328), (2, 139231664), (4, 69615832), (8, 34807916), (11, 25314848), (13, 21420256), (16, 17403958), (22, 12657424), (26, 10710128), (31, 8982688), (32, 8701979), (44, 6328712), (52, 5355064), (62, 4491344), (88, 3164356), (104, 2677532), (124, 2245672), (143, 1947296), (151, 1844128), (169, 1647712), (176, 1582178), (208, 1338766), (248, 1122836), (286, 973648), (302, 922064), (338, 823856), (341, 816608), (352, 791089), (403, 690976), (416, 669383), (496, 561418), (572, 486824), (604, 461032), (676, 411928), (682, 408304), (806, 345488), (992, 280709), (1144, 243412), (1208, 230516), (1352, 205964), (1364, 204152), (1612, 172744), (1661, 167648), (1859, 149792), (1963, 141856), (2288, 121706), (2416, 115258), (2704, 102982), (2728, 102076), (3224, 86372), (3322, 83824), (3718, 74896), (3926, 70928), (4433, 62816), (4576, 60853), (4681, 59488), (4832, 57629), (5239, 53152), (5408, 51491), (5456, 51038), (6448, 43186), (6644, 41912), (7436, 37448), (7852, 35464), (8866, 31408), (9362, 29744), (10478, 26576), (10912, 25519), (12896, 21593), (13288, 20956), (14872, 18724), (15704, 17732)]