399490304

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{709}}^1$

素因数の和:827

約数の個数: 72

約数和(自身を含む): 835914240

約数和(自身を除く): 436423936

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 71, 124, 128, 142, 248, 256, 284, 496, 568, 709, 992, 1136, 1418, 1984, 2201, 2272, 2836, 3968, 4402, 4544, 5672, 7936, 8804, 9088, 11344, 17608, 18176, 21979, 22688, 35216, 43958, 45376, 50339, 70432, 87916, 90752, 100678, 140864, 175832, 181504, 201356, 281728, 351664, 402712, 563456, 703328, 805424, 1406656, 1560509, 1610848, 2813312, 3121018, 3221696, 5626624, 6242036, 6443392, 12484072, 12886784, 24968144, 49936288, 99872576, 199745152, 399490304]

約数ペア:

[(1, 399490304), (2, 199745152), (4, 99872576), (8, 49936288), (16, 24968144), (31, 12886784), (32, 12484072), (62, 6443392), (64, 6242036), (71, 5626624), (124, 3221696), (128, 3121018), (142, 2813312), (248, 1610848), (256, 1560509), (284, 1406656), (496, 805424), (568, 703328), (709, 563456), (992, 402712), (1136, 351664), (1418, 281728), (1984, 201356), (2201, 181504), (2272, 175832), (2836, 140864), (3968, 100678), (4402, 90752), (4544, 87916), (5672, 70432), (7936, 50339), (8804, 45376), (9088, 43958), (11344, 35216), (17608, 22688), (18176, 21979)]