81322388

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{641}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 170843904

約数和(自身を除く): 89521516

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 197, 322, 394, 641, 644, 788, 1282, 1379, 2564, 2758, 4487, 4531, 5516, 8974, 9062, 14743, 17948, 18124, 29486, 31717, 58972, 63434, 103201, 126277, 126868, 206402, 252554, 412804, 505108, 883939, 1767878, 2904371, 3535756, 5808742, 11617484, 20330597, 40661194, 81322388]

約数ペア:

[(1, 81322388), (2, 40661194), (4, 20330597), (7, 11617484), (14, 5808742), (23, 3535756), (28, 2904371), (46, 1767878), (92, 883939), (161, 505108), (197, 412804), (322, 252554), (394, 206402), (641, 126868), (644, 126277), (788, 103201), (1282, 63434), (1379, 58972), (2564, 31717), (2758, 29486), (4487, 18124), (4531, 17948), (5516, 14743), (8974, 9062)]