672256

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:132

約数の個数: 40

約数和(自身を含む): 1460844

約数和(自身を除く): 788588

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 101, 104, 128, 202, 208, 256, 404, 416, 512, 808, 832, 1313, 1616, 1664, 2626, 3232, 3328, 5252, 6464, 6656, 10504, 12928, 21008, 25856, 42016, 51712, 84032, 168064, 336128, 672256]

約数ペア:

[(1, 672256), (2, 336128), (4, 168064), (8, 84032), (13, 51712), (16, 42016), (26, 25856), (32, 21008), (52, 12928), (64, 10504), (101, 6656), (104, 6464), (128, 5252), (202, 3328), (208, 3232), (256, 2626), (404, 1664), (416, 1616), (512, 1313), (808, 832)]