638647532

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{2789}}^1$

素因数の和:2966

約数の個数: 48

約数和(自身を含む): 1237420800

約数和(自身を除く): 598773268

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 131, 262, 437, 524, 874, 1748, 2489, 2789, 3013, 4978, 5578, 6026, 9956, 11156, 12052, 52991, 57247, 64147, 105982, 114494, 128294, 211964, 228988, 256588, 365359, 730718, 1218793, 1461436, 2437586, 4875172, 6941821, 8403257, 13883642, 16806514, 27767284, 33613028, 159661883, 319323766, 638647532]

約数ペア:

[(1, 638647532), (2, 319323766), (4, 159661883), (19, 33613028), (23, 27767284), (38, 16806514), (46, 13883642), (76, 8403257), (92, 6941821), (131, 4875172), (262, 2437586), (437, 1461436), (524, 1218793), (874, 730718), (1748, 365359), (2489, 256588), (2789, 228988), (3013, 211964), (4978, 128294), (5578, 114494), (6026, 105982), (9956, 64147), (11156, 57247), (12052, 52991)]