394681456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 846168064

約数和(自身を除く): 451486608

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 127, 134, 208, 223, 254, 268, 446, 508, 536, 871, 892, 1016, 1072, 1651, 1742, 1784, 2032, 2899, 3302, 3484, 3568, 5798, 6604, 6968, 8509, 11596, 13208, 13936, 14941, 17018, 23192, 26416, 28321, 29882, 34036, 46384, 56642, 59764, 68072, 110617, 113284, 119528, 136144, 194233, 221234, 226568, 239056, 368173, 388466, 442468, 453136, 736346, 776932, 884936, 1472692, 1553864, 1769872, 1897507, 2945384, 3107728, 3795014, 5890768, 7590028, 15180056, 24667591, 30360112, 49335182, 98670364, 197340728, 394681456]

約数ペア:

[(1, 394681456), (2, 197340728), (4, 98670364), (8, 49335182), (13, 30360112), (16, 24667591), (26, 15180056), (52, 7590028), (67, 5890768), (104, 3795014), (127, 3107728), (134, 2945384), (208, 1897507), (223, 1769872), (254, 1553864), (268, 1472692), (446, 884936), (508, 776932), (536, 736346), (871, 453136), (892, 442468), (1016, 388466), (1072, 368173), (1651, 239056), (1742, 226568), (1784, 221234), (2032, 194233), (2899, 136144), (3302, 119528), (3484, 113284), (3568, 110617), (5798, 68072), (6604, 59764), (6968, 56642), (8509, 46384), (11596, 34036), (13208, 29882), (13936, 28321), (14941, 26416), (17018, 23192)]