19806272

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:259

約数の個数: 56

約数和(自身を含む): 41452800

約数和(自身を除く): 21646528

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 67, 124, 134, 149, 248, 268, 298, 496, 536, 596, 992, 1072, 1192, 1984, 2077, 2144, 2384, 4154, 4288, 4619, 4768, 8308, 9238, 9536, 9983, 16616, 18476, 19966, 33232, 36952, 39932, 66464, 73904, 79864, 132928, 147808, 159728, 295616, 309473, 319456, 618946, 638912, 1237892, 2475784, 4951568, 9903136, 19806272]

約数ペア:

[(1, 19806272), (2, 9903136), (4, 4951568), (8, 2475784), (16, 1237892), (31, 638912), (32, 618946), (62, 319456), (64, 309473), (67, 295616), (124, 159728), (134, 147808), (149, 132928), (248, 79864), (268, 73904), (298, 66464), (496, 39932), (536, 36952), (596, 33232), (992, 19966), (1072, 18476), (1192, 16616), (1984, 9983), (2077, 9536), (2144, 9238), (2384, 8308), (4154, 4768), (4288, 4619)]