256819563

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{983}}^1$

素因数の和:1049

約数の個数: 96

約数和(自身を含む): 515773440

約数和(自身を除く): 258953877

約数列:

[1, 3, 7, 9, 11, 13, 21, 29, 33, 39, 63, 77, 87, 91, 99, 117, 143, 203, 231, 261, 273, 319, 377, 429, 609, 693, 819, 957, 983, 1001, 1131, 1287, 1827, 2233, 2639, 2871, 2949, 3003, 3393, 4147, 6699, 6881, 7917, 8847, 9009, 10813, 12441, 12779, 20097, 20643, 23751, 28507, 29029, 32439, 37323, 38337, 61929, 75691, 85521, 87087, 89453, 97317, 115011, 140569, 199549, 227073, 256563, 261261, 268359, 313577, 370591, 421707, 598647, 681219, 805077, 940731, 983983, 1111773, 1265121, 1795941, 2195039, 2594137, 2822193, 2951949, 3335319, 4076501, 6585117, 7782411, 8855847, 12229503, 19755351, 23347233, 28535507, 36688509, 85606521, 256819563]

約数ペア:

[(1, 256819563), (3, 85606521), (7, 36688509), (9, 28535507), (11, 23347233), (13, 19755351), (21, 12229503), (29, 8855847), (33, 7782411), (39, 6585117), (63, 4076501), (77, 3335319), (87, 2951949), (91, 2822193), (99, 2594137), (117, 2195039), (143, 1795941), (203, 1265121), (231, 1111773), (261, 983983), (273, 940731), (319, 805077), (377, 681219), (429, 598647), (609, 421707), (693, 370591), (819, 313577), (957, 268359), (983, 261261), (1001, 256563), (1131, 227073), (1287, 199549), (1827, 140569), (2233, 115011), (2639, 97317), (2871, 89453), (2949, 87087), (3003, 85521), (3393, 75691), (4147, 61929), (6699, 38337), (6881, 37323), (7917, 32439), (8847, 29029), (9009, 28507), (10813, 23751), (12441, 20643), (12779, 20097)]