219857456

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4871}}^1$

素因数の和:4930

約数の個数: 80

約数和(自身を含む): 541298688

約数和(自身を除く): 321441232

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 248, 364, 403, 434, 496, 728, 806, 868, 1456, 1612, 1736, 2821, 3224, 3472, 4871, 5642, 6448, 9742, 11284, 19484, 22568, 34097, 38968, 45136, 63323, 68194, 77936, 126646, 136388, 151001, 253292, 272776, 302002, 443261, 506584, 545552, 604004, 886522, 1013168, 1057007, 1208008, 1773044, 1963013, 2114014, 2416016, 3546088, 3926026, 4228028, 7092176, 7852052, 8456056, 13741091, 15704104, 16912112, 27482182, 31408208, 54964364, 109928728, 219857456]

約数ペア:

[(1, 219857456), (2, 109928728), (4, 54964364), (7, 31408208), (8, 27482182), (13, 16912112), (14, 15704104), (16, 13741091), (26, 8456056), (28, 7852052), (31, 7092176), (52, 4228028), (56, 3926026), (62, 3546088), (91, 2416016), (104, 2114014), (112, 1963013), (124, 1773044), (182, 1208008), (208, 1057007), (217, 1013168), (248, 886522), (364, 604004), (403, 545552), (434, 506584), (496, 443261), (728, 302002), (806, 272776), (868, 253292), (1456, 151001), (1612, 136388), (1736, 126646), (2821, 77936), (3224, 68194), (3472, 63323), (4871, 45136), (5642, 38968), (6448, 34097), (9742, 22568), (11284, 19484)]