81978464

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1237}}^1$

素因数の和:1375

約数の個数: 48

約数和(自身を含む): 171586800

約数和(自身を除く): 89608336

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 109, 152, 218, 304, 436, 608, 872, 1237, 1744, 2071, 2474, 3488, 4142, 4948, 8284, 9896, 16568, 19792, 23503, 33136, 39584, 47006, 66272, 94012, 134833, 188024, 269666, 376048, 539332, 752096, 1078664, 2157328, 2561827, 4314656, 5123654, 10247308, 20494616, 40989232, 81978464]

約数ペア:

[(1, 81978464), (2, 40989232), (4, 20494616), (8, 10247308), (16, 5123654), (19, 4314656), (32, 2561827), (38, 2157328), (76, 1078664), (109, 752096), (152, 539332), (218, 376048), (304, 269666), (436, 188024), (608, 134833), (872, 94012), (1237, 66272), (1744, 47006), (2071, 39584), (2474, 33136), (3488, 23503), (4142, 19792), (4948, 16568), (8284, 9896)]