399497686

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5233}}^1$

素因数の和:5309

約数の個数: 48

約数和(自身を含む): 751811760

約数和(自身を除く): 352314074

約数列:

[1, 2, 7, 14, 19, 38, 41, 49, 82, 98, 133, 266, 287, 574, 779, 931, 1558, 1862, 2009, 4018, 5233, 5453, 10466, 10906, 36631, 38171, 73262, 76342, 99427, 198854, 214553, 256417, 429106, 512834, 695989, 1391978, 1501871, 3003742, 4076507, 4871923, 8153014, 9743846, 10513097, 21026194, 28535549, 57071098, 199748843, 399497686]

約数ペア:

[(1, 399497686), (2, 199748843), (7, 57071098), (14, 28535549), (19, 21026194), (38, 10513097), (41, 9743846), (49, 8153014), (82, 4871923), (98, 4076507), (133, 3003742), (266, 1501871), (287, 1391978), (574, 695989), (779, 512834), (931, 429106), (1558, 256417), (1862, 214553), (2009, 198854), (4018, 99427), (5233, 76342), (5453, 73262), (10466, 38171), (10906, 36631)]